{"id":2985,"date":"2014-06-30T23:37:07","date_gmt":"2014-06-30T15:37:07","guid":{"rendered":"https:\/\/sdeno.com\/?p=2985"},"modified":"2016-07-06T11:51:52","modified_gmt":"2016-07-06T03:51:52","slug":"php%e7%ac%94%e8%ae%b0","status":"publish","type":"post","link":"https:\/\/sdeno.com\/?p=2985","title":{"rendered":"php\u7b14\u8bb0"},"content":{"rendered":"

*

<\/div>
<\/div><\/div><\/div>\"phpfh\"<\/figure><\/a><\/span><\/p>\n

\u53d8\u91cf\u548c\u5e38\u91cf\u533a\u5206<\/span>\u5927\u5c0f\u5199
\n$a =10;
\n$A =20;
\n\u4ee5\u4e0a\u53d8\u91cf\u540d\u662f\u533a\u5206\u5927\u5c0f\u5199\u7684.
\necho Echo \u4e0d\u533a\u5206\u5927\u5c0f\u5199
\n\u53ef\u53d8\u53d8\u91cf
\n

<\/div>
<\/div><\/div><\/div>\"php1\"<\/figure><\/a><\/p>\n

 <\/p>\n

\u53d8\u91cf\u8d4b\u503c<\/span>[\u4f20\u9012\u8d4b\u503c(\u72ec\u7acb)\uff0c\u5f15\u7528\u8d4b\u503c\uff08\u5173\u8054)]
\n$one=10; \/\/10\u8d4b\u503c\u8ddfone
\n$two=$one \/\/one\u8d4b\u503c\u7ed9two,\u5373\u4f7f\u6539\u53d8one\u7684\u503c\uff0ctwo\u7684\u503c\u4e0d\u4f1a\u53d8<\/p>\n

$two=&$one \/\/\u5f15\u7528\u8d4b\u503c \u6539\u53d8one\u6216\u8005two\u5c31\u662f\u7b49\u4e8e\u6539\u53d8\u4e86\u53e6\u4e00\u4e2a\u53d8\u91cf\u3002<\/p>\n

PHP\u53d8\u91cf\u7c7b\u578b\u548cJS\u4e00\u6837\u90fd\u662f\u4e0d\u7528\u53bb\u58f0\u660e\u6307\u5b9a\u7684\u7c7b\u578b\uff0c\u53ea\u8981\u770b\u503c\u6765\u5224\u65ad\u53d8\u91cf\u7684\u7c7b\u578b\u3002
\n\u53d8\u91cf\u7c7b\u578b
\n

<\/div>
<\/div><\/div><\/div>\"php2\"<\/figure><\/a><\/p>\n

\u67e5\u770b\u7c7b\u578bvar_dump($a);<\/p>\n

\u5355\u5f15\u53f7 \u548c \u53cc\u5f15\u53f7 \u7684\u533a\u522b\uff0c
\n\u5982\u679c\u53ea\u662f\u5355\u7eaf\u7684\u8f93\u51fa\u5b57\u7b26\u4e32\u548c\u8f6c\u4e49\\’ \\\\\u5c31\u4f7f\u7528\u5355\u5f15\u53f7\uff0c\u5426\u5219\u5c31\u662f\u7528\u53cc\u5f15\u53f7\uff0c
\n\u53cc\u5f15\u53f7\u53ef\u4ee5\u540c\u65f6\u8f93\u51fa\u5b57\u7b26\u4e32\u91cc\u9762\u7684\u53d8\u91cf\u548c\u591a\u4e2a\u8f6c\u4e49\u5b57\u7b26\u4e3a\u4ec0\u4e48\u4e0d\u4f7f\u7528\u5462\uff1f\u56e0\u4e3a\u4f1a\u5360\u7528\u8d44\u6e90\u3002
\n\u6570\u636e\u7c7b\u578b\u4e4b\u95f4\u8f6c\u6362<\/span>
\nsetType(\u53d8\u91cf,\u7c7b\u578b)
\n\u4f8b\u5982\uff1a
\n$str=”100.234abc”;
\nsetType($str,int); \/\/\u8f93\u51fa\u7684\u503c\u662f100\uff0c\u8fd9\u4e2a\u51fd\u6570\u662f\u5728\u539f\u7c7b\u578b\u4e0a\u6539\u53d8\u3002<\/p>\n

$a=(int)$str; \/\/\u8fd9\u4e2a\u65b9\u6cd5\u5c06\u5b57\u7b26\u4e32\u91cd\u65b0\u8f6c\u578b\u8d4b\u503c\u7ed9$a,\u539f\u7c7b\u578b$str\u4e0d\u4f1a\u53d8\u3002<\/p>\n

$a=intval($str); \/\/ \u6b64\u65b9\u6cd5\u8ddf\u7b2c\u4e8c\u4e2a\u4e00\u6837\u90fd\u662f\u7c7b\u578b\u4e34\u65f6\u8f6c\u5316\u3002<\/p>\n

\u7c7b\u578b\u4e34\u65f6\u8f6c\u5316\u7684\u6709\uff1aintval()\u3001 floatval() \u3001strval()
\n\u4ee5\u4e0a\u90fd\u662f\u5f3a\u5236\u8f6c\u6362
\n\u56e0\u4e3aPHP\u662f\u5f31\u7c7b\u578b\u7684\u8bed\u8a00\u4e0d\u8003\u8651\u7c7b\u578b\u8f6c\u5316\u5c31\u53ef\u4ee5\u76f8\u52a0\u4f8b\u5982
\n$a=10;
\n$b=”100abc”;
\n$c=true;
\n$d=12.34;
\n$sum=$a+$b+$c+$d; \/\/\u76f8\u52a0\u7684\u8bddPHP\u4f1a\u5c06\u5176\u4ed6\u7c7b\u578b\u81ea\u52a8\u8f6c\u6362\u6210\u6570\u5b57\u578b\uff0c\u8fd9\u5c31\u662fPHP\u5f00\u53d1\u5feb\u7684\u539f\u56e0\u3002
\n\u8ddf\u53d8\u91cf\u6709\u5173\u7684PHP\u5185\u7f6e\u51fd\u6570<\/span>\uff0c\u5982\u4e0b
\nisset() \/\/\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u5b58\u5728\uff0c\u4e0d\u7ba1\u53d8\u91cf\u662f\u4e0d\u662f\u7a7a\u90fd\u7b97\u5b58\u5728\u3002\uff08null\u4e5f\u7b97\u53d8\u91cf\u4e0d\u5b58\u5728\uff09
\nempty() \/\/\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u4e0d\u662f\u4e3a\u7a7a\uff0c\u4e3a\u7a7a\u7684\u8bdd\u8fd4\u56detrue\u5426\u5219false\u3002\uff08””\u30010\u3001”0″\u3001null\u3001false\u3001array()\u3001var $var\u90fd\u4e3a\u7a7a\uff09
\nunset();\/\/\u5220\u9664\u53d8\u91cf\u3002
\nsetType()\/\/\u7c7b\u578b\u4e4b\u95f4\u5f3a\u5236\u8f6c\u6362
\nvar_dump()\/\/\u67e5\u770b\u7c7b\u578b\uff08\u7f29\u5199\uff09\uff0c\u8fd9\u4e2a\u65e2\u80fd\u770b\u5230\u7c7b\u578b\u4e5f\u80fd\u770b\u5230\u503c
\ngetType()\/\/\u67e5\u770b\u7c7b\u578b\uff08\u6269\u5199\uff09\uff0c\u53ea\u80fd\u770b\u51fa\u7c7b\u578b\u3002
\n\u5224\u65ad\u53d8\u91cf\u7c7b\u578b\u51fd\u6570<\/span>\uff08PHP\u5f3a\u5927\u5c31\u5728\u4e8e\u5185\u7f6e\u51fd\u6570\u592a\u591a\u4f7f\u7528\u8d77\u6765\u65b9\u4fbf\uff09
\nis_bool();
\nis_int() is_integer() is_long()
\nis_string()
\nis_float() is_double() is_real()
\nis_array()
\nis_object()
\nis_resource() \/\/\u5224\u65ad\u53d8\u91cf\u662f\u5426\u662f\u8d44\u6e90\u7c7b\u578b
\nis_null()<\/p>\n

is_scalar() \/\/\u5224\u65ad\u662f\u5426\u662f \u6574\u5f62 \u6d6e\u70b9\u578b \u5b57\u7b26\u4e32
\nis_callable()\/\/\u5224\u65ad\u662f\u5426\u662f\u6709\u6548\u7684\u51fd\u6570\u540d
\nis_numeric()\/\/\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u4e0d\u662f\u6570\u5b57\u578b
\n\u5b9a\u4e49\u4e00\u4e2a\u5e38\u91cf<\/span>\u7684\u65b9\u6cd5
\ndefine(“\u5e38\u91cf\u540d”,”\u5e38\u91cf\u503c”);<\/p>\n

\u5224\u65ad\u4e00\u4e2a\u5e38\u91cf\u662f\u5426\u5b58\u5728\u7528defined(“\u5e38\u91cf\u540d”);<\/p>\n

\u5e38\u91cf\u503c\u6c38\u8fdc\u4e0d\u4f1a\u53d8\uff0c\u4e5f\u4e0d\u80fd\u88abunset()\u5220\u9664\u662f\u5168\u5c40\u53d8\u91cf\uff0c\u8d4b\u503c\u53ea\u80fd\u662f\u6807\u91cf\uff08int,float,bool,string\uff09
\n\u5e38\u91cf\u7684\u503c\u4e00\u65e6\u58f0\u660e\u4e86\u4e5f\u4e0d\u80fd\u6539\u3002
\n\u8fd0\u7b97\u7b26——<\/p>\n

%\u53d6\u4f59\u6570<\/p>\n

.\u5728PHP\u4e2d\u5b57\u7b26\u4e32\u8fde\u63a5<\/span>\u7528\u7684\u662f.\u800c\u5728js\u4e2d\u7528\u7684\u662f+\u3002
\n+= -= *= \/= %= \/\/\u4f8b\u5982 $a+=10; $a=$a+10;<\/p>\n

.= \/\/\u4f8b\u5982 $a.=”abc” $a=$a.”abc”;<\/p>\n

$str='<table>’;
\n$str.='<\/table>’; \/\/\u8f93\u51fa\u7ed3\u679c\u5c31\u662f<table><\/table>
\n\u4f4d\u8fd0\u7b97\u7b26 \u5728JS \u548cPHP \u51e0\u4e4e\u5f88\u5c11\u7528\u5230<\/p>\n

“\u7b26\u53f7\u53ef\u4ee5\u91cc\u9762\u53ef\u4ee5\u6267\u884c\u7cfb\u7edf\u547d\u4ee4\u7136\u540e\u5c06\u7ed3\u679c\u8d4b\u503c\u7ed9\u4e00\u4e2a\u53d8\u91cf
\n\u4f8b\u5982
\n$str=`ipconfig \/all`;<\/p>\n

 <\/p>\n

\u6587\u4ef6\u548c\u6587\u4ef6\u76ee\u5f55\u7684\u76f8\u5173\u64cd\u4f5c<\/p>\n

echo basename(‘c:\\www\\1.php’) \u00a0 \/\/\u53ea\u83b7\u53d6\u6587\u4ef6\u540d 1.php<\/p>\n

echo dirname(‘c:\\www\\1.php’) \u00a0\/\/\u83b7\u53d6\u8def\u5f84 \u00a0c:\\www\\<\/p>\n

print_r(pathinfo(‘c:\\www\\1.php’)) \u00a0 \/\/\u83b7\u5f97\u6b64\u6587\u4ef6\u7684 \u7edd\u5bf9\u8def\u5f84\u3001\u683c\u5f0f\u3001\u540d\u79f0\u3002<\/p>\n

realpath(‘1.php’) \u00a0\/\/ \u83b7\u53d6\u5230\u6b64\u6587\u4ef6\u6240\u5728\u7684\u7edd\u5bf9\u8def\u5f84 c:\\www\\1.php<\/p>\n

\u9b54\u6cd5\u5e38\u91cf<\/p>\n

__FILE__ \u00a0\/\/ \u83b7\u53d6\u6587\u4ef6\u7edd\u5bf9\u8def\u5f84\u4f8b\u5982 \u00a0c:\/www\/2.php<\/p>\n

 <\/p>\n

\u5faa\u73af<\/p>\n

\u8303\u56f4\u5224\u65ad\u4f7f\u7528if else
\n\u5355\u4e2a\u503c\u5224\u65ad\u4f7f\u7528switch<\/p>\n

break \/\/\u9000\u51fa\u5b83\u6240\u5728\u7684\u5faa\u73af\u4f53\uff0c\u5faa\u73af\u4f53\u540e\u9762\u7684\u4ee3\u7801\u8fd8\u6267\u884c<\/p>\n

exit \u00a0\/\/\u5728\u5b83\u540e\u9762\u7684\u4ee3\u7801\u4e00\u6982\u90fd\u4e0d\u6267\u884c<\/p>\n

continue \/\/\u9000\u51fa\u6b64\u65f6\u523b\u7684\u5faa\u73af\u7ee7\u7eed\u540e\u9762\u7684\u5faa\u73af<\/p>\n

 <\/p>\n

\u00a0\u968f\u673a\u6570<\/span><\/p>\n

echo mt_rand(0,100); \u00a0\/\/\u5305\u62ec0\u548c100\u76840\u5230100\u7684\u968f\u673a\u6574\u6570\u3002<\/p>\n

\u683c\u5f0f\u5316\u6570\u636e<\/p>\n

$i=123456.789;<\/p>\n

$b=number_format($i,2); \u00a0\/\/\u5bf9$i\u53d8\u91cf\u683c\u5f0f\u5316\uff0c\u4fdd\u75592\u4f4d\u5c0f\u6570\u6ca1\u6709\u7684\u8bdd\u5c31.00\u8865\u5145<\/p>\n

$b \u00a0\/\/123,456.78<\/p>\n

\u6570\u5b66\u51fd\u6570<\/span><\/p>\n

abs() \u00a0 \/\/\u7edd\u5bf9\u503c<\/p>\n

floor() \u00a0\/\/\u820d\u53bb\u5c0f\u6570\u4fdd\u7559\u6574\u6570<\/p>\n

ceil() \u00a0 \/\/\u53ea\u8981\u5c0f\u6570\u70b9\u4e0d\u662f0\uff0c\u90fd\u4f1a\u5411\u6574\u6570\u52a01<\/p>\n

round() \/\/\u56db\u820d\u4e94\u5165<\/p>\n

min() \u00a0\/\/\u6c42\u6700\u5c0f\u6570<\/p>\n

max() \u00a0\/\/\u6c42\u6700\u5927\u6570<\/p>\n

\u4ee5\u4e0a\u662f\u5e38\u7528\u7684\uff0c\u5176\u4ed6\u7684\u8fd8\u6709\u5f88\u591a\u9700\u8981\u81ea\u5df1\u67e5\u8d44\u6599\u4e86<\/p>\n

\u51fd\u6570<\/span>
\n\u51fd\u6570\u4e2d\u672b\u5c3e\u52a0\u4e0areturn $str,\u51fd\u6570\u7684\u503c\u5c31\u4f1a\u8fd4\u56de\u7ed9\u8c03\u7528\u5904\uff0c\u8c03\u7528\u5c31\u6210\u4e86\u4e00\u4e2a\u503c,\u8fd9\u6837\u53ef\u4ee5\u8f93\u5165\u6570\u636e\u5e93\u3002
\n\u4f8b\u5982
\nfunction table(){
\n$str='<table><\/table>’;
\nreturn $str;
\necho ‘1111’; \/\/\u5728return\u540e\u9762\u5199\u4ee3\u7801\u65e0\u6548,\u540c\u65f6\u4e5f\u53ef\u4ee5\u4f7f\u7528return\u5f53\u4f5c\u51fd\u6570\u7684\u7ed3\u675f\u8bed\u53e5\u3002
\n}<\/p>\n

echo table(); \/\/table()\u5c31\u662f\u4e00\u4e2a\u503c\u4e86\u3002
\necho table().’\u4f60\u597d’; \/\/\u5982\u679c\u662f\u503c\u6570\u5b57\u4e5f\u53ef\u4ee5\u53c2\u4e0e\u8fd0\u7b97
\n\u51fd\u6570\u4e2d\u8981\u4f7f\u7528\u51fd\u6570\u4ee5\u5916\u7684\u5168\u5c40\u53d8\u91cf\u5c31\u8981\u4f7f\u7528global,\u4f8b\u5982\u3002
\n$a=10;
\nfunction table(){
\nglobal $a; \/\/\u8fd9\u6837\u624d\u80fd\u4f7f\u7528\u4e0a\u5168\u5c40\u7684$a
\n$a+=10;
\n}
\nstatic \u5728\u51fd\u6570\u4e2d\u53d8\u91cf\u4e2d\u58f0\u660e\u6b64\u65f6\u7684\u53d8\u91cf\u5c31\u76f8\u5f53\u4e8e\u8fd9\u4e2a\u51fd\u6570\u7684\u5168\u5c40\u53d8\u91cf\uff0c\u6b64\u53d8\u91cf\u4f1a\u5171\u7528\u3002
\n\u4f8b\u5982\uff0c
\nfunction test(){
\nstatic $a=0;
\n$a++;
\necho $a.”<br>”;
\n}<\/p>\n

test(); \/\/ a=1
\ntest(); \/\/ a=2
\ntest(); \/\/ a=3<\/p>\n

\u51fd\u6570\u91cc\u7684\u53c2\u6570\u53d8\u91cf\u548c\u51fd\u6570\u5916\u7684\u53d8\u91cf\u4e0d\u4f1a\u6709\u51b2\u7a81\u3002<\/p>\n

 <\/p>\n

\u53d8\u91cf\u51fd\u6570\uff0c\u5c31\u662f\u628a\u51fd\u6570\u8d4b\u503c\u7ed9\u4e00\u4e2a\u53d8\u91cf\uff0c\u7136\u540e\u53d8\u91cf\u62ec\u53f7\u91cc\u9762\u7a7f\u53c2\u6570\u3002
\n\u4f8b\u5982\uff0c
\nfunction one($a,$b){
\nreturn $a+$b;
\n}<\/p>\n

function two($a,$b){
\nreturn $a*$b;
\n}<\/p>\n

$var=one; \/\/\u81ea\u52a8\u5bfb\u627e \u51fd\u6570\u540d\u662fone\u7684\u51fd\u6570
\n$var=”two”; \/\/\u81ea\u52a8\u5bfb\u627e \u51fd\u6570\u540d\u662ftwo\u7684\u51fd\u6570<\/p>\n

echo $var(3,4); \/\/\u53ef\u4ee5\u8fd9\u6837\u7a7f\u53c2\u6570<\/p>\n

 <\/p>\n

\u4e3a\u51fd\u6570\u8bbe\u7f6e\u9ed8\u8ba4\u53c2\u6570<\/p>\n

function($a=10){ \u00a0 \/\/\u8bbe\u7f6e\u9ed8\u8ba4\u53c2\u6570<\/p>\n

return $a;<\/p>\n

}<\/p>\n

 <\/p>\n

\u6570\u7ec4<\/p>\n

\u6570\u7ec4\u7684\u4e00\u4e9b\u7279\u6027
\n

<\/div>
<\/div><\/div><\/div>\"php3\"<\/figure><\/a>
\n1\uff0c\u5982\u679c\u6570\u7ec4\u7d22\u5f150\u81ea\u5b9a\u4e49\u5728\u540e\u9762\uff0c\u90a3\u4e48\u7d22\u5f150\u524d\u9762\u7684\u6570\u7ec4\u5143\u7d20\u90fd\u6ca1\u5ffd\u7565\u3002
\n2\uff0c\u81ea\u5b9a\u4e49\u6570\u7ec4\u7d22\u5f15\uff0c\u6570\u7ec4\u540e\u9762\u7684\u7d22\u5f15\u9ed8\u8ba4\u63a5\u7740\u6700\u5927\u4e00\u4e2a\u7d22\u5f15\u5f00\u59cb\u3002
\n
<\/div>
<\/div><\/div><\/div>\"php4\"<\/figure><\/a><\/p>\n

\u53ef\u4ee5\u81ea\u5b9a\u4e49\u7d22\u5f15\uff0c\u5982\u679c\u5176\u4ed6\u6ca1\u6709\u81ea\u5b9a\u4e49\u7684\u7d22\u5f15\u5c31\u9ed8\u8ba4\u662f0\u5f00\u59cb
\n\u6570\u7ec4\u4e2d\u52a0\u5165\u6570\u7ec4
\n$user =array(array(),array(),array());<\/p>\n

php\u7b14\u8bb0<\/a><\/p>\n

 <\/p>\n

 <\/p>\n

\u6570\u7ec4\u904d\u5386<\/p>\n

1,for\u5faa\u73af\uff08\u6570\u7ec4\u7684\u7d22\u5f15\u5fc5\u987b\u662f\u6570\u5b57\u548c\u6709\u89c4\u5f8b\uff0cPHP\u4e2d\u4e0d\u63a8\u8350\u4f7f\u7528\uff09
\n2\uff0cforeach php\u4e2d\u63a8\u8350\u4f7f\u7528
\nforeach(\u6570\u7ec4\u53d8\u91cf as \u81ea\u5b9a\u4e49\u53d8\u91cf){
\n\u5faa\u73af\u6b21\u6570\u7531\u6570\u7ec4\u7684\u5143\u7d20\u4e2a\u6570\u786e\u5b9a\uff1b
\n\u6bcf\u6b21\u5faa\u73af\u90fd\u4f1a\u5c06\u5c5e\u6027\u503c\u8d4b\u503c\u7ed9\u81ea\u5b9a\u4e49\u53d8\u91cf\uff1b
\n}<\/p>\n

foreach(\u6570\u7ec4\u53d8\u91cf as \u81ea\u5b9a\u4e49\u7d22\u5f15\u53d8\u91cf=>\u81ea\u5b9a\u4e49\u5c5e\u6027\u503c\u53d8\u91cf){
\n\u6bcf\u6b21\u5faa\u73af\u90fd\u4f1a\u81ea\u52a8\u5c06\u6570\u7ec4\u7684\u7d22\u5f15\u548c\u5c5e\u6027\u503c \u8d4b\u503c\u7ed9\u81ea\u5b9a\u4e49\u7d22\u5f15\u53d8\u91cf \u548c \u81ea\u5b9a\u4e49\u5c5e\u6027\u503c\u53d8\u91cf
\n}<\/p>\n

3\uff0cwhile() list() each() \u7ec4\u5408\u4f7f\u7528<\/p>\n

each(\u6570\u7ec4)
\n\u7b2c\u4e00\u6b21\u8c03\u7528\u8fd4\u56de\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5c5e\u6027\u548c\u5c5e\u6027\u503c\uff0c\u7ed3\u679c\u662f\u6570\u7ec4\uff0c\u56fa\u5b9a\u662f\u5c5e\u6027\u662f0\uff0c1\uff0ckey\uff0cvalue\uff0c
\n0,key\u662f\u5c5e\u6027
\n1,value\u662f\u5c5e\u6027\u503c
\n\u7b2c\u4e8c\u6b21\u8c03\u7528\u8fd4\u56de\u6570\u7ec4\u7b2c\u4e8c\u4e2a\u5c5e\u6027\u548c\u5c5e\u6027\u503c\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002\u5982\u679c\u7ee7\u7eed\u8c03\u7528\u8fd4\u56de\u7684\u5c31\u662ffalse\u3002<\/p>\n

\u6253\u5370\u7ed3\u679c\/\/Array([1]=>\u503c [value]=>\u503c [0]=>\u7d22\u5f15 [key]=>\u7d22\u5f15 );<\/p>\n

 <\/p>\n

list(\u6570\u7ec4)<\/p>\n

list($a,$b,$c)=$array \/\/ $arry\u6570\u7ec4\u53ea\u80fd\u662f\u4e0b\u6807\u4e3a\u6570\u5b57\u7684\u624d\u80fd\u4f7f\u7528list();
\n\u4e5f\u5c31\u662f\u8bf4\u4f8b\u5982 $array=array(‘age’=>19,’name’=>’\u5c0f\u9648’) \u8fd9\u6837\u7684\u6570\u7ec4\u5c31\u4e0d\u80fd\u8d4b\u503c\u7ed9list()
\nlist()=\u6570\u7ec4 \/\/\u5c06\u6570\u7ec4\u8d4b\u503c\u7ed9list()\u51fd\u6570
\nlist($name,,$age)=array(‘zhangsan’,10,’\u7537’); \/\/\u8981\u4e00\u4e00\u5bf9\u5e94 *list()\u53ea\u80fd\u63a5\u53d7\u7d22\u5f15\u662f\u6570\u5b57\u7684\uff0c\u5e76\u4e14\u6309\u6570\u5b57\u5c0f\u5230\u5927\u8d4b\u503c
\n\u4f8b\u5b50\u4e00\uff1a
\n$user=array(“id”=1,”name”=>”zhangsan”,”age”=>10,”sex”=>”nan”);
\nlist($key,$value)=each($user); \/\/\u6253\u5370\u51fa Array([1]=>1 [value]=>1 [0]=>id [key]=>id );
\n\/\/\u4f46\u662flist()\u7684\u53c2\u6570\u53ea\u80fd\u63a5\u53d7\u6570\u5b57\uff0c\u867d\u7136\u5148\u6253\u5370\u51fa[1]=>1\u5728\u5230[0]=>id\uff0c
\n\u8d4b\u503c\u987a\u5e8f\u662f[0]=>id\u5148\u8d4b\u503c\u7ed9$key\uff0c[1]=>1\u5728\u8d4b\u503c\u7ed9$value<\/p>\n

\u4f8b\u5b50\u4e8c\uff1a
\n$ip=”192.168.1.128″;
\n$ips=explode(“.”,$ip); \/\/\u5c06IP\u4ee5\u70b9\u5206\u5272\u6210\u4e3a\u4e00\u4e2a\u6570\u7ec4\u3002
\nlist(,,,)=explode(“.”,$ip);
\n3\u4e2a\u51fd\u6570\u7ec4\u5408\u4f7f\u7528\u4f8b\u5b50\uff1a
\n$user=array(“id”=1,”name”=>”zhangsan”,”age”=>10,”sex”=>”nan”);
\nwhile(list($key,$value)=each($user)){ \/\/\u5229\u7528while\u4e00\u76f4\u5faa\u73af\u76f4\u5230each\u6267\u884c\u5230false\u7684\u65f6\u5019\u8df3\u51fawhile\u5faa\u73af,
\necho $key.”—–“.$valu; \/\/each\u9010\u4e2a\u8c03\u7528\u8d4b\u503c\u7ed9list,\u601d\u8def\u5728\u4f8b\u5b50\u4e00\u3002
\n}<\/p>\n

\u63a7\u5236\u6570\u7ec4\u6267\u884c\u6b65\u9aa4
\nnext(\u6570\u7ec4) \/\/ \u6267\u884c\u4e00\u6b21\u6307\u9488\u6307\u5411\u4e0b\u4e00\u6b65\u3002
\nprev(\u6570\u7ec4)
\nreset(\u6570\u7ec4) \/\/\u8fd4\u56de\u7b2c\u4e00\u4e2a\u6307\u9488\u521d\u59cb\u5316\u610f\u601d
\nend(\u6570\u7ec4)
\ncurrent(\u6570\u7ec4) \/\/\u83b7\u53d6\u5f53\u524d\u6570\u7ec4\u7684\u5c5e\u6027\u503c\uff0c\u6267\u884c\u591a\u6b21\u6307\u9488\u4e0d\u53d8\u3002
\nkey(\u6570\u7ec4) \/\/\u83b7\u53d6\u5f53\u524d\u6570\u7ec4\u7684\u7d22\u5f15<\/p>\n

 <\/p>\n

!!\u7528\u6cd5\u5176\u5b9e\u5c31\u662f\u5c06\u771f\u5b9e\u5b58\u5728\u7684\u6570\u636e\u8f6c\u5316\u6210\u4e3a\u5e03\u5c14\u503c \u548cJS\u7528\u6cd5\u4e00\u6837
\n\u4f8b\u5982
\necho each($array); \/\/\u663e\u793aarray \u8bf4\u660e\u662f\u6709\u6570\u636e\u7684 \u4e3atrue<\/p>\n

echo !each($array); \/\/ null\u7a7a\u767d\u4e0d\u663e\u793a\u6570\u636e<\/p>\n

echo !!each($array); \/\/ 1 \u6b64\u65f6\u5c31\u8f6c\u5316\u6210\u4e86\u5e03\u5c14\u503c<\/p>\n

\u5faa\u73af\u6570\u7ec4\u91cc\u7684\u6570\u7ec4\u4ee5\u4e0b\u4e24\u79cd\u65b9\u6cd5\uff1a<\/p>\n

<\/div>
<\/div><\/div><\/div>\"each_array\"<\/figure><\/a>\n

php2<\/a><\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

\u6570\u7ec4\u7684\u76f8\u5173\u5904\u7406\u51fd\u6570<\/p>\n

\u7d22\u5f15\/\u5c5e\u6027\u503c \u7684\u64cd\u4f5c
\n1\uff0carray_values(); \/\/\u5c06\u6570\u7ec4\u7684\u5c5e\u6027\u503c\u53d6\u51fa\u6765\u4ece\u65b0\u6392\u5217\u4e00\u4e2a\u7d22\u5f15\u4ece0\u5f00\u59cb\u7684\u65b0\u6570\u7ec4\u3002<\/p>\n

2\uff0carray_keys(); \/\/\u53d6\u51fa\u6570\u7ec4\u7684\u7d22\u5f15\u91cd\u65b0\u6392\u5217\u6210\u4e00\u4e2a\u6570\u7ec4\u7d22\u5f15\u53c8\u662f\u4ece0\u5f00\u59cb\u3002
\narray_keys(\u6570\u7ec4,”\u5c5e\u6027\u503c”,true) \/\/\u8fd9\u91cc\u7684\u586b\u5199\u5c5e\u6027\u503c\u5c31\u83b7\u53d6\u5230\u6b64\u5c5e\u6027\u503c\u7684\u7d22\u5f15\u6392\u5217\u6210\u4e00\u4e2a\u6570\u7ec4
\n\/\/\u7b2c3\u4e2a\u53c2\u6570\u9ed8\u8ba4\u662ffalse\uff0c\u5982\u679c\u5199true\u610f\u601d\u662f\u662f\u5426\u4e25\u683c\u6309\u7167\u7c7b\u578b\u5224\u65ad<\/p>\n

3\uff0cin_array(“\u5c5e\u6027\u503c”,\u6570\u7ec4,true) \/\/\u5224\u8bfb\u8fd9\u4e2a\u5c5e\u6027\u503c\u5728\u4e0d\u5728\u8fd9\u4e2a\u6570\u7ec4\u91cc\u9762\uff0c\u5728\u8fd4\u56detrue \u4e0d\u5728\u8fd4\u56defalse
\n\/\/\u7b2c\u4e09\u4e2a\u53c2\u6570\u4e3atrue,\u5c5e\u6027\u503c\u7684\u7c7b\u578b\u5c31\u5fc5\u987b\u4e25\u683c\u5339\u914d<\/p>\n

4\uff0carray_key_exists(“\u7d22\u5f15”,\u6570\u7ec4) \/\/\u5224\u65ad\u7d22\u5f15\u5728\u4e0d\u5728\u6570\u7ec4\u4e2d<\/p>\n

5\uff0carray_flip \/\/\u5c06\u6570\u7ec4\u4e2d\u7684 \u7d22\u5f15\u548c\u5c5e\u6027\u503c \u4ea4\u6362<\/p>\n

6\uff0carray_reverse(\u6570\u7ec4) \/\/\u6570\u7ec4\u91cc\u7684\u5143\u7d20\u987a\u5e8f\u98a0\u5012<\/p>\n

 <\/p>\n

\u7edf\u8ba1\u6570\u7ec4\u5143\u7d20\u4e2a\u6570 \u548c \u5c5e\u6027\u503c\u7684\u552f\u4e00\u6027
\n1\uff0ccount(\u6570\u7ec4,1) \/\/\u7edf\u8ba1\u6570\u7ec4\u91cc\u9762\u7684\u5143\u7d20\u4e2a\u6570\uff0c\u5982\u679c\u52a0\u4e0a1\uff0c\u5c31\u4f1a\u5c06\u5143\u7d20\u4e3a\u6570\u7ec4\u7684\u5143\u7d20\u4e00\u6837\u7edf\u8ba1\u51fa\u6765\u3002<\/p>\n

2\uff0carray_count_values \/\/\u5206\u7c7b\u7edf\u8ba1\u6570\u7ec4\u91cc\u9762\u7684\u5c5e\u6027\u503c\u51fa\u73b0\u7684\u91cd\u590d\u6b21\u6570\uff0c\u8fd4\u56de\u7ed3\u679c\u662f\u6570\u7ec4\u3002
\n\u4f8b\u5982\u8fd4\u56de array( [linux]=>2,[apache]=>2 ); \/\/\u5c5e\u6027\u503c\u6210\u4e86\u7d22\u5f15\uff0c\u91cd\u590d\u4e2a\u6570\u6210\u4e86\u5c5e\u6027\u503c\u3002<\/p>\n

3\uff0carray_unique \/\/\u79fb\u9664\u6570\u7ec4\u4e2d\u91cd\u590d\u7684\u5c5e\u6027\u503c\uff0c\u4fdd\u7559\u539f\u6765\u6570\u7ec4\u4e0d\u53d8\u521b\u5efa\u65b0\u6570\u7ec4\u3002
\n\u6570\u7ec4\u5143\u7d20\u8fc7\u6ee4<\/p>\n

4\uff0cextract() \u00a0\/\/\u5c06\u6570\u7ec4\u7684\u7d22\u5f15\u8f6c\u6210\u53d8\u91cf\u3002<\/p>\n

\u4f8b\u5982$array=array(‘wo’=>’\u9648\u683c’);<\/p>\n

extract($array);<\/p>\n

echo $wo; \/\/\u9648\u683c
\n1\uff0carray_filter(\u6570\u7ec4,”\u51fd\u6570”)
\n\u4f8b\u5b50\uff1a
\n$arr=array(1,2,3,-4,4,5,-5,-12);
\n$arr1=array_filter($arr,”myfun”); \/\/\u5c06\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u4e00\u4e2a\u4e2a\u5e26\u5165\u51fd\u6570\u4e2d\uff0ctrue\u5c31\u91cd\u65b0\u8fd4\u56de\u6570\u7ec4false\u5c31\u5220\u9664\u3002
\nfunction myfun($n){
\nif($n>0){
\nreturn true;
\n}else{
\nreturn false;
\n}
\n}
\n\u8fd4\u56de \/\/=array(1,2,3,4,5,-12);
\n2\uff0carray_walk() \u4f8b\u5b50\u8bf4\u660e
\n$arr=array(“os”=>”linux”,”wb”=>”apache”);
\narray_walk($arr,”myfun1″,”========”);
\nfunction myfun1($value,$key,$p){
\necho $key.$p.$value.”<br>”;
\n}
\n\u8fd4\u56de \/\/ os========linux
\nwb========apache<\/p>\n

array_walk($arr,”myfun1″);
\nfunction myfun1(&$value,$key){ \/\/\u5c5e\u6027\u503c\u5904\u52a0\u4e86&\u7b26\u53f7
\n$value=”ffffff”; \/\/\u7edf\u4e00\u5c06\u5168\u90e8\u7684\u5c5e\u6027\u503c\u90fd\u91cd\u65b0\u8d4b\u503c\u6210\u4e3affffff
\n}
\n\u8fd4\u56de \/\/ array(“os”=>”ffffff”,”wb”=>”ffffff”);<\/p>\n

 <\/p>\n

3,array_map() \/\/\u7edf\u4e00\u5728\u539f\u6765\u5c5e\u6027\u503c\u4e0a\u6dfb\u52a0\u76f8\u540c\u5185\u5bb9
\n$arr=array(“os”=>”linux”,”wb”=>”apache”);
\n$arr1=array_map(“myfun1”,$arr); \/\/\u5c06\u6570\u7ec4\u4e2d\u7684\u5c5e\u6027\u503c\u5e26\u5165\u51fd\u6570\u4e2d
\nfunction myfun1($n){
\nreturn “==”.$n.”==”;
\n}
\n\u8fd4\u56de \/\/ array(“os”=>”==linux==”,”wb”=>”==apache==”);
\n$arr=array(“os”=>”linux”,”wb”=>”apache”);
\n$arrr=array(“os”=>”win”,”wb”=>”iis”);
\n$arr1=array_map(“myfun1”,$arr,$arrr); \/\/\u4e24\u4e2a\u6570\u7ec4\u957f\u5ea6\u8981\u4e00\u6837
\nfunction myfun1($n,$t){
\nif($n==$t){
\nreturn “same”;
\n}
\nreturn “diff”;
\n}<\/p>\n

\u8fd4\u56de \/\/ array([0]=>diff,[1]=>diff);<\/p>\n

php3<\/a><\/p>\n

\u6570\u7ec4\u7684\u6392\u5e8f\u51fd\u6570<\/p>\n

sort() \/\/\u6839\u636e\u503c\u5c0f\u5230\u5927\u6392\u5e8f (\u7d22\u5f15\u88ab\u6539\u53d8\u6210\u4ece0\uff0c1..)<\/p>\n

rsort() \/\/\u6839\u636e\u503c\u5927\u5230\u5c0f\u6392\u5e8f (\u7d22\u5f15\u88ab\u6539\u53d8\u6210\u4ece0\uff0c1..)<\/p>\n

ksort() \/\/\u6839\u636e\u7d22\u5f15\u503c\u5c0f\u5230\u5927\u6392\u5e8f \u5e76\u4fdd\u7559\u539f\u6765\u7684\u7d22\u5f15\u548c\u503c\u7684\u5173\u7cfb<\/p>\n

krsort() \/\/\u6839\u636e\u7d22\u5f15\u503c\u5927\u5230\u5c0f\u6392\u5e8f \u5e76\u4fdd\u7559\u539f\u6765\u7684\u7d22\u5f15\u548c\u503c\u7684\u5173\u7cfb<\/p>\n

asort() \/\/\u6839\u636e\u503c\u5c0f\u5230\u5927\u6392\u5e8f \u5e76\u4fdd\u7559\u539f\u6765\u7684\u7d22\u5f15\u548c\u503c\u7684\u5173\u7cfb<\/p>\n

arsort() \/\/\u6839\u636e\u503c\u5927\u5230\u5c0f\u6392\u5e8f \u5e76\u4fdd\u7559\u539f\u6765\u7684\u7d22\u5f15\u548c\u503c\u7684\u5173\u7cfb<\/p>\n

\u81ea\u7136\u6570\u6392\u5e8f
\nnatsort() \u533a\u5206\u5927\u5c0f\u5199
\nnatcasesort() \u4e0d\u533a\u5206\u5927\u5c0f\u5199<\/p>\n

\u4f8b\u5982
\n$data=array(“file1.txt”,”file11″,”file2.txt”,”file22.txt”);
\n\u5982\u679c\u4f7f\u7528\u666e\u901a\u7684\u6392\u5e8f\u4f8b\u5982\u662fsort()\u7ed3\u679c\u662f
\n(“file1.txt”,”file11″,”file2.txt”,”file22.txt”)
\nfile11\u6392\u5728\u4e86file2\u540e\u9762\u663e\u7136\u4e0d\u662f\u6211\u4eec\u60f3\u8981\u7684
\n\u5982\u679c\u4f7f\u7528natsort()\uff0c\u6392\u5e8f\u7ed3\u679c\u4f1a\u6b63\u5e38\u3002
\n(“file1.txt”,”file2″,”file11.txt”,”file22.txt”)
\n\u5982\u679c\u533a\u5206\u5927\u5c0f\u5199\u90a3\u4e48\u5927\u5199\u7684\u4f1a\u6392\u5728\u524d\u9762
\n(“File2.txt”,”file1″,”file11.txt”,”file22.txt”)<\/p>\n

\u7528\u6237\u81ea\u5b9a\u4e49\u6392\u5e8f
\nusort() uasort() uksort()<\/p>\n

\u4f8b\u5982usort() \/\/\u5c0f\u5230\u5927\u6392\u5e8f \u7d22\u5f15\u4f1a\u91cd\u65b0\u8d4b\u503c0 \u5f00\u59cb<\/p>\n

$arr = array(“Peter”, “glenn”,”Cleveland”,”peter”,”cleveland”, “Glenn”);
\nusort($arr, “my_sort”);<\/p>\n

function my_sort($a, $b)
\n{
\nif ($a == $b) return 0; \/\/0 \u6392\u5e8f\u4e0d\u53d8
\nreturn ($a > $b) ? -1 : 1; \/\/a>b,a\u8d4b\u503c1\u5411\u540e\u9000 \u5426\u5219\u8d4b\u503c-1\u524d\u8fdb
\n}
\nprint_r ($arr);<\/p>\n

uasort() \/\/ \u8ddfusort\u529f\u80fd\u4e00\u6837\u4f46\u662f\u7d22\u5f15\u503c\u4e0d\u53d8<\/p>\n

uksort() \/\/ \u5927\u5230\u5c0f\u6392\u5e8f \u4f46\u662f\u7d22\u5f15\u503c\u4e0d\u53d8<\/p>\n

\u6570\u7ec4\u62c6\u5206 \u5408\u5e76
\n$a=array(0=>”Dog”,1=>”Cat”,2=>”Horse”,3=>”Bird”);
\narray_slice() \/\/\u8fc7\u6ee4\u6570\u7ec4\uff0c\u9009\u6307\u5b9a\u6570\u7ec4\u4e2d\u7684\u5143\u7d20
\nprint_r(array_slice($a,1,2)); \/\/[0] => Cat [1] => Horse
\nprint_r(array_slice($a,-2,1)); \/\/[0] => Horse<\/p>\n

array_splice() \/\/\u8fc7\u6ee4\u6570\u7ec4\uff0c\u8ddf\u4e0a\u9762\u5dee\u4e0d\u591a<\/p>\n

array_combine($a1,$a2); \/\/\u5408\u5e76\u6570\u7ec4\uff0c $a1\u6570\u7ec4\u662f\u7d22\u5f15\uff0c$a2\u6570\u7ec4\u4e3a\u503c\uff0c\u4e24\u6570\u7ec4\u5408\u5e76\u6210\u4e00\u4e2a\u6570\u7ec4<\/p>\n

array_merge($a,$b,$c,….); \/\/\u5408\u5e76\u6570\u7ec4\uff0c\u524d\u9762\u7684\u6570\u7ec4\u5982\u4f55\u540e\u9762\u7684\u6570\u7ec4\u7d22\u5f15\u91cd\u590d\uff0c\u5c31\u4f1a\u88ab\u540e\u9762\u7684\u8986\u76d6\u3002
\narray_merge($a) \/\/\u8f93\u5165\u5355\u4e2a\u6570\u7ec4\uff0c\u7d22\u5f15\u4ece\u9ed8\u8ba4\u4ece0\u5f00\u59cb\u3002
\n\u53c2\u8003http:\/\/www.w3school.com.cn\/php\/func_array_merge.asp<\/p>\n

array_intersect($a1,$a2); \/\/\u9009\u51fa\u6570\u7ec4\u516c\u5171\u7684\u90e8\u5206\uff0c\u9009\u51fa\u7684\u6570\u7ec4\u7d22\u5f15\u4ee5$a1\u7684\u4e3a\u51c6<\/p>\n

array_diff($a1,$a2);\/\/\u9009\u51fa\u4e0d\u540c\u7684\u90e8\u5206\u6392\u5217\u4e3a\u6570\u7ec4\uff0c\u9009\u51fa\u7684\u6570\u7ec4\u7d22\u5f15\u4ee5$a1\u7684\u4e3a\u51c6<\/p>\n

\u6808\uff08\u6700\u540e\u8fdb\u7684\u6700\u5148\u51fa\uff0c\u5c31\u50cf\u4e0a\u5b50\u5f39\u4e00\u6837\uff09<\/p>\n

\u4f8b\u5982\u5728\u6570\u7ec4\u4e2d\u5165\u6808\uff08\u5411\u6570\u7ec4\u6dfb\u52a0\u5143\u7d20\uff09
\n$a1=array(‘php’,’word’);
\n$a1[]=’one’; \/\/\u6570\u7ec4\u672b\u5c3e\u589e\u52a0\u5143\u7d20\uff0c\u5165\u6808\u63a8\u8350\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5
\n$a1[]=’two’;<\/p>\n

array_push($a1,’one’\uff0c’two’); \/\/\u6570\u7ec4\u672b\u5c3e\u589e\u52a0\u5143\u7d20,\u6539\u53d8\u539f\u6570\u7ec4\u3002<\/p>\n

array_pop($a1);\/\/\u51fa\u6808\u9ed8\u8ba4\u5220\u9664\u6700\u540e\u4e00\u4e2a\uff0c\u6700\u540e\u8fdb\u7684\u6700\u5148\u51fa<\/p>\n

\u5806\uff08\u5148\u8fdb\u5148\u51fa\uff0c\u5c31\u50cf\u5438\u7ba1\u4e00\u6837\uff09<\/p>\n

array_unshift($a1,’one’,’two’); \/\/\u6570\u7ec4\u6700\u524d\u9762\u6dfb\u52a0\u5143\u7d20,\u6539\u53d8\u539f\u6570\u7ec4\u3002<\/p>\n

array_shift($a1,’one’,’two’); \/\/\u5220\u9664\u6570\u7ec4\u6700\u524d\u9762\u5143\u7d20\u3002<\/p>\n

unset() \/\/\u53ef\u4ee5\u5220\u9664\u53d8\u91cf\uff0c\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u5bf9\u8c61\u4e2d\u7684\u6210\u5458\u3002
\nunset($a1[5]);<\/p>\n

\u5176\u4ed6\u64cd\u4f5c\u6570\u7ec4\u51fd\u6570<\/p>\n

array_rand($a1,1); \/\/\u968f\u673a\u53d61\u4e2a\u6570\u7ec4\u7684\u7d22\u5f15<\/p>\n

\u5982\u679c\u968f\u673a\u83b7\u53d62\u4e2a\u8981\u600e\u4e48\u5199\uff1a<\/p>\n

<\/div>
<\/div><\/div><\/div>\"array_rand\"<\/figure><\/a>\n

shuffle($a1); \/\/\u968f\u673a\u6392\u5217\u6570\u7ec4\u3002<\/p>\n

array_sum($a1); \/\/\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u6c42\u548c<\/p>\n

range()\/\/\u521b\u5efa\u7b80\u5355\u6709\u89c4\u5f8b\u7684\u6570\u7ec4\u3002
\nrange(‘a’,’k’) \/\/\u7d22\u5f15\u662f0\uff0c\u521b\u5efaa\u5230k\u7684\u6570\u7ec4
\nrange(0,50,10) \/\/\u7d22\u5f15\u662f0\uff0c\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u503c\u662f0\u523050\u5e76\u4e14\u6570\u503c\u5dee\u4e3a10<\/p>\n

 <\/p>\n

\u00a0\u6587\u4ef6\u5305\u542b<\/span><\/p>\n

require(‘demo.php’) \u00a0\/\/\u5f15\u5165\u7684\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u4ee5\u4e0b\u7684\u4ee3\u7801\u4e0d\u4f1a\u6267\u884c\u3002<\/p>\n

include() \u00a0\/\/ \u00a0\u5f15\u5165\u7684\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u4ee5\u4e0b\u7684\u4ee3\u7801\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n

require\u4e00\u4e2a\u6587\u4ef6\u5b58\u5728\u9519\u8bef\u7684\u8bdd\uff0c\u90a3\u4e48\u7a0b\u5e8f\u5c31\u4f1a\u4e2d\u65ad\u6267\u884c\u4e86\uff0c\u5e76\u663e\u793a\u81f4\u547d\u9519\u8bef
\ninclude\u4e00\u4e2a\u6587\u4ef6\u5b58\u5728\u9519\u8bef\u7684\u8bdd\uff0c\u90a3\u4e48\u7a0b\u5e8f\u4e0d\u4f1a\u4e2d\u7aef\uff0c\u800c\u662f\u7ee7\u7eed\u6267\u884c\uff0c\u5e76\u663e\u793a\u4e00\u4e2a\u8b66\u544a\u9519\u8bef\u3002<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

\u5b57\u7b26\u4e32\u64cd\u4f5c\u5904\u7406<\/span><\/p>\n

\u4e3a\u4ec0\u4e48\u8981\u5904\u7406\u5b57\u7b26\u4e32\uff0c\u662f\u56e0\u4e3a\u5b57\u7b26\u4e32\u662f\u8981\u5199\u5165\u6570\u636e\u5e93\u4e3a\u4e86\u51cf\u5c11\u5197\u4f59\u548c\u63d0\u4f9b\u5b89\u5168\u5fc5\u987b\u8981\u5bf9\u5b57\u7b26\u4e32\u5904\u7406\u4e4b\u540e\u624d\u4f20\u5165\u5230\u6570\u636e\u5e93\uff0c\u9632\u6b62\u6076\u610f\u6ce8\u5165\u3002<\/p>\n

trim() \u00a0\/\/\u6e05\u9664\u5b57\u7b26\u4e32\u6700\u4e24\u8fb9\u7684\u7a7a\u683c\u3002<\/p>\n

ltrim() \u00a0\/\/\u6e05\u9664\u6700\u5de6\u8fb9<\/p>\n

rtrim() \u00a0\/\/\u6e05\u9664\u6700\u53f3\u8fb9<\/p>\n

nl2br() \u00a0\/\/\u6548\u679c\u662f\u5c06\u7528\u6237\u7684\u56de\u8f66\u952e\u548c\\n\u5728html\u4e0a\u89e3\u6790\u6210<br>,\u4f8b\u5982\u53d1\u8d34\u9700\u8981\u56de\u8f66\u6362\u884c\u3002<\/p>\n

htmlspecialchars() \u00a0\/\/\u5c06\u7279\u6b8a\u5b57\u7b26\u8f6c\u4e49\uff0c\u4e3b\u8981\u9632\u6b62XSS<\/p>\n

strip_tags() \u00a0\/\/\u5220\u9664\u5b57\u7b26\u4e32\u91cc\u6240\u6709\u7684html\u6807\u7b7e<\/p>\n

addslashes() \u00a0\/\/\u5c06\u7279\u6b8a\u591a\u52a0\u4e00\u4e2a\\\u8f6c\u4e49\uff08\u5728\u4f20\u5165\u5230\u6570\u636e\u5e93\u4e2d\uff09<\/p>\n

stripcslashes() \u00a0\/\/\u591a\u51fa\u6765\u7684\/\u5220\u9664\u6389 \u00a0\uff08\u5728\u663e\u793a\u5230\u9875\u9762\u4e2d\uff09<\/p>\n

explode(‘@’,’chen@163.com’) \u00a0\/\/\u6309@\u62c6\u5206\u6210\u4e00\u4e2a\u6570\u7ec4\u3002<\/p>\n

implode(‘@’,\u6570\u7ec4) \u00a0\/\/\u5c06\u4e00\u4e2a\u6570\u7ec4\u91cc\u7684\u5143\u7d20\u7528@\u5408\u5e76\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002<\/p>\n

strtok() \u00a0\/\/\u5c06\u4e00\u4e2a\u5b57\u7b26\u4e32\u4ee5\u591a\u4e2a\u5206\u5272\u70b9\u4e3a\u51c6\u8fdb\u884c\u5206\u5272\uff0c\u4f8b\u5982\uff1a<\/p>\n

<\/div>
<\/div><\/div><\/div>\"php_strtok\"<\/figure><\/a>\n

 <\/p>\n

substr(‘\u5b57\u7b26\u4e32’,0,2) \u00a0 \/\/ \u4ece\u7b2c0\u4e2a\u4f4d\u7f6e\u5f00\u59cb\u53d62\u4e2a\u5b57\u7b26\u4e32\uff0c\u8fd4\u56de\u5b57\u7b26\u4e32<\/p>\n

str_split(‘\u5b57\u7b26\u4e32’) \u00a0 \/\/\u5c06\u5b57\u7b26\u4e32\u62c6\u5206\u6210\u5355\u4e2a\u4e2a\u4f53\uff0c\u8fd4\u56de\u6570\u7ec4<\/p>\n

strrev(‘\u5b57\u7b26\u4e32’) \u00a0 \/\/ \u5c06\u5b57\u7b26\u4e32\u987a\u5e8f\u5012\u8fc7\u6765<\/p>\n

\u5b57\u7b26\u4e32\u6bd4\u8f83<\/p>\n

strcmp(‘c’,’b’) \u00a0\/\/c>b\u00a0\u8fd4\u56de1 \u00a0< \u8fd4\u56de-1 \u00a0=\u8fd4\u56de0\uff0c\u533a\u5206\u5927\u5c0f<\/p>\n

strcasecmp() \u00a0\/\/\u4e0d\u533a\u5206\u5927\u5c0f<\/p>\n

strnatcmp(‘2′,’10’) \u00a0\/\/\u6309\u81ea\u7136\u6392\u5e8f\uff0c\u628a10\u770b\u6210\u4e00\u4e2a\u6570\u5b57<\/p>\n

strcmp(‘2′,’10’) \u00a0\/\/\u6309\u975e\u81ea\u7136\u6392\u5e8f\uff0c10\u770b\u6210\u4e861<\/p>\n

substr_count(‘abcde’,’a’) \u00a0\/\/a \u5728\u5b57\u7b26\u4e32\u51fa\u73b0\u7684\u6b21\u6570<\/p>\n

strlen(‘abc’) \u00a0\/\/3 \u00a0\u5b57\u7b26\u4e32\u957f\u5ea6<\/p>\n

strstr(‘abce’,’b’) \u00a0 \/\/ \u5f97\u5230 bce \u00a0\uff0c\u533a\u5206\u5927\u5c0f\u5199<\/p>\n

stristr(‘abce’,’B’) \u00a0 \/\/ \u5f97\u5230 bce \u00a0\uff0c\u4e0d\u533a\u5206\u5927\u5c0f\u5199<\/p>\n

strpos(‘abceb’,\u2018b\u2019) \u00a0\/\/\u8fd4\u56de1\u7d22\u5f150\u5f00\u59cb\uff0c\u67e5\u627e\u67d0\u5b57\u7b26\u4e32\u6700\u5148\u51fa\u73b0\u5728\u4e00\u6bb5\u5b57\u7b26\u4e32\u7684\u4ec0\u4e48\u4f4d\u7f6e<\/p>\n

strrpos(‘abceb’,\u2018b\u2019) \u00a0\/\/\u5012\u5e8f\uff0c\u6700\u540e\u51fa\u73b0\u7684\u4f4d\u7f6e<\/p>\n

str_replace(‘Lee’,’Wq’,’This is Lee!’) \u00a0\/\/This is Wq \u5b57\u7b26\u4e32\u66ff\u6362<\/p>\n

substr_replace(‘abce’,’$$$’,0,2) \/\/ $$$ce \u00a0 \u4ece\u7b2c0\u4e2a\u4f4d\u7f6e\u5f00\u59cb\u66ff\u63622\u4e2a<\/p>\n

*\u6ce8\u610f\u4ee5\u4e0a\u7684\u65b9\u6cd5\u9002\u7528\u4e8e\u82f1\u6587\u5b57\u7b26\u4e32\u5904\u7406\u5bf9\u4e8e\u4e2d\u6587\u5b57\u7b26\u4e32\u5904\u7406\u8fd8\u9700\u8981\u767e\u5ea6\u4e0b<\/p>\n

\u65f6\u95f4\u6233<\/span><\/p>\n

\u8be6\u7ec6\u8bbe\u7f6e\u65b9\u6cd5\u70b9\u8fd9\u91cc<\/a><\/p>\n

date_default_timezone_set(‘Asia\/Shanghai’) \u00a0\/\/\u5148\u8bbe\u7f6e\u670d\u52a1\u5668\u65f6\u533a<\/p>\n

checkdate(7,16,2015) \u00a0\/\/\u6708\u65e5\u5e74 \u00a0\u68c0\u67e5\u65f6\u95f4\u662f\u5426\u6709\u8bef<\/p>\n

date(‘Y-m-d H:i:s’) \u00a0\/\/ 2015-11-11<\/p>\n

time() \u00a0\/\/\u76f4\u63a5\u83b7\u53d6\u5f53\u524d\u65f6\u95f4\u6233<\/p>\n

date(‘Y-m-d H:i:s’,\u65f6\u95f4\u6233) \u00a0\/\/\u7b2c\u4e8c\u4e2a\u53c2\u6570\u52a0\u5165\u65f6\u95f4\u6233\u53ef\u4ee5\u8f6c\u5316\u6210 \u6b63\u5e38\u65f6\u95f4\u683c\u5f0f<\/p>\n

gettimeofday() \u00a0\/\/\u8fd4\u56de\u6570\u7ec4\uff0c\u8fd4\u56de\u5f53\u524d\u65f6\u95f4\u4fe1\u606f\u3002<\/p>\n

getdate() \/\/\u8fd4\u56de\u6570\u7ec4\uff0c\u83b7\u53d6\u8be6\u7ec6\u7684\u5f53\u524d\u65f6\u95f4\u4fe1\u606f\u3002<\/p>\n

mktime(\u65f6,\u5206,\u79d2,\u6708,\u65e5,\u5e74) \u00a0 \/\/\u83b7\u53d6\u6307\u5b9a\u65f6\u95f4\u6233<\/p>\n

strtotime(‘2011-11-11 20:20:20’) \u00a0\/\/\u5c06\u6307\u5b9a\u65f6\u95f4\u8f6c\u6210\u65f6\u95f4\u6233<\/p>\n

microtime() \u00a0\/\/\u8fd4\u56de \u5f53\u524d\u5fae\u5999\u6570\u548c\u65f6\u95f4\u6233 \u00a0\uff08\u5fae\u5999\u6570+\u65f6\u95f4\u6233\u5c31\u662f\u5f53\u524d\u6700\u7cbe\u786e\u65f6\u95f4\uff09<\/p>\n

Cookie \u4e0e Session\u533a\u522b<\/span><\/p>\n

cookie\u548csession\u90fd\u53ef\u4ee5\u8de8\u9875\u9762\u83b7\u53d6\u5230\u53e6\u4e00\u4e2a\u9875\u9762\u8bbe\u7f6e\u7684\u503c<\/p>\n

cookie\u7528\u9014\uff1a\u5b58\u50a8\u5728\u5ba2\u6237\u7aef\u4e2d\uff0c\u8bb0\u5f55\u4f1a\u5458\u767b\u5f55\u4fe1\u606f\uff0c\u8d2d\u7269\u8f66\u3002\u3002\u56e0\u4e3a\u5b83\u4e0d\u5360\u7528\u8d44\u6e90\u670d\u52a1\u5668\uff0c\u5173\u6d4f\u89c8\u5668\u81ea\u52a8\u5220\u9664\u3002<\/p>\n

session\u7528\u9014\uff1a\u5b58\u50a8\u5728\u670d\u52a1\u5668\u7aef\uff0c\u670d\u52a1\u5668\u624d\u80fd\u83b7\u53d6\u5ba2\u6237\u7aef\u4e0d\u80fd\uff0c\u7528\u5728\u540e\u53f0\u7ba1\u7406\u767b\u5f55\u4eba\u5c11\u7684\uff0c\u5b89\u5168\u4e00\u6bb5\u65f6\u95f4\u4e0d\u64cd\u4f5c\u5c31\u81ea\u52a8\u8fc7\u671f\u9ed8\u8ba41440\u79d2\u540e\u81ea\u52a8\u5220\u9664\uff0c\u5173\u6d4f\u89c8\u5668\u4e5f\u81ea\u52a8\u5220\u9664\u3002<\/p>\n

setcookie(‘name’,’lee’,time()+(7*24*60*60)) \u00a0\/\/\u521b\u5efa\u4e00\u4e2acookie\u5c5e\u6027\u4e3aname\u503c\u4e3alee\uff0c\u4e14\u57287\u5929\u540e\u8fc7\u671f<\/p>\n

$_COOKIE[‘name’] \u00a0\/\/\u83b7\u53d6name\u7684\u503c \u00a0\uff08\u61622\uff0c3\u79d2\u624d\u80fd\u83b7\u53d6\u5230\uff09<\/p>\n

setcookie(‘name’,’lee’,time()-1) \u00a0\/\/\u5220\u9664\u4e00\u4e2acookie \u8ba9\u65f6\u95f4\u8fc7\u53bb1\u79d2<\/p>\n

\u4f7f\u7528session\u524d \u5fc5\u987b\u4e4b\u524d\u5f00\u59cb\u529f\u80fd session_start()<\/p>\n

$_SESSION[‘name’]=’lee’; \u00a0\/\/\u521b\u5efa\u4e00\u4e2asession<\/p>\n

$_SESSION[‘name’] \u00a0\/\/\u83b7\u53d6<\/p>\n

unset($_SESSION[‘name’]) \u00a0\/\/\u5220\u9664\u6307\u5b9asession<\/p>\n

session_destroy() \u00a0\/\/\u5220\u9664\u6240\u6709session (\u5220\u9664\u61622\uff0c3\u79d2)<\/p>\n

\u4e0a\u4f20\u6587\u4ef6\u76f8\u5173\u51fd\u6570<\/span><\/p>\n

\u6848\u4f8bhttps:\/\/sdeno.com\/zp\/imgup\/img.php<\/a><\/p>\n

PHP\u4e0a\u4f20\u914d\u7f6e\u662f\u5728php.ini\u8fd9\u91cc\u8bbe\u7f6e\u7684\uff0c\u91cd\u8981\u53c2\u6570\u662f\uff1a<\/p>\n

file_uploads \u00a0\/\/\u670d\u52a1\u5668\u662f\u5426\u5f00\u542f\u4e0a\u4f20<\/p>\n

upload_max_filesize \u00a0\/\/\u8bbe\u7f6e\u6587\u4ef6\u4e0a\u4f20\u6700\u5927MB<\/p>\n

<form enctype=”multipart\/form-data”> \u00a0\/\/\u6b64\u5c5e\u6027\u5fc5\u586b\u5426\u5219\u4e0d\u80fd\u4e0a\u4f20<\/p>\n

<input type=”hidden” name=”MAX_FILE_SIZE” value=”1000000″> \/\/\u63a8\u8350\u8bbe\u7f6e\u4e00\u4e2a\u9690\u85cf\u57df\u8fd9\u91cc\u53ef\u4ee5\u5feb\u901f\u5224\u65ad\u4e0a\u4f20\u7684\u6587\u4ef6\u5927\u5c0f\u662f\u5426\u64cd\u4f5c\u4e86\u670d\u52a1\u5668\u5141\u8bb8\u7684\u5927\u5c0f\u514d\u53bb\u4e86\u7528\u6237\u4e0a\u4f20\u540e\u624d\u53d1\u73b0\u81ea\u5df1\u4e0a\u4f20\u7684\u6587\u4ef6\u8d85\u8fc7\u4e86\u670d\u52a1\u5141\u8bb8\u7684\u5927\u5c0f\u7b49\u5f85\u7684\u65f6\u95f4\u3002<\/p>\n

$_FILES \u00a0\/\/\u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4\uff0c\u53ef\u4ee5\u83b7\u53d6\u5230\u4e0a\u4f20\u6587\u4ef6\u7684\u4fe1\u606f\uff0c\u4f8b\u5982<\/p>\n

name \u00a0 \/\/\u6587\u4ef6\u540d \u00a0 123.jpg<\/p>\n

type \u00a0 \/\/\u6587\u4ef6\u7c7b\u578b \u00a0image\/jpg \u00a0\u4e0d\u540c\u6d4f\u89c8\u5668\u663e\u793a\u7c7b\u578b\u4e0d\u4e00\u6837\u8981\u6ce8\u610f\u517c\u5bb9<\/p>\n

tmp_name \u00a0\/\/\u83b7\u53d6\u4e34\u65f6\u6587\u4ef6 \u7528\u4e8e\u5224\u65ad\u4e0a\u4f20\u7684\u6587\u4ef6\u662f\u5426\u6210\u529f<\/p>\n

error \u00a0\/\/\u8fd4\u56de\u6570\u5b57\uff0c\u4e0a\u4f20\u6210\u529f\u8fd4\u56de0\uff0c\u5176\u4ed6\u4e0d\u540c\u6570\u5b57\u8fd4\u56de\u7684\u9519\u8bef\u4fe1\u606f\u4e0d\u4e00\u6837<\/p>\n

<\/div>
<\/div><\/div><\/div>\"error1\"<\/figure><\/a>\n

size \u00a0\/\/ \u6587\u4ef6\u5927\u5c0f \u5b57\u8282\u5355\u4f4d<\/p>\n

\u5982\u679c\u83b7\u53d6\u6587\u4ef6\u4fe1\u606f\uff1f\u4f8b\u5982<\/p>\n

<input type=”file” name=”userfile” \/><\/p>\n

$_FILES[‘userfile’][‘tmp_name’] \u00a0 \/\/\u539f\u7406\u540c\u4e0a<\/p>\n

is_uploaded_file() \u00a0 \u00a0\/\/\u5224\u65ad\u6587\u4ef6\u662f\u5426\u4e0a\u4f20\u6210\u529f \uff08\u5fc5\u987b\u7528post\u65b9\u5f0f\u4e0a\u4f20\u6587\u4ef6\uff09<\/p>\n

\u4f8b\u5982\uff1ais_uploaded_file($_FILES[‘userfile’][‘tmp_name’])<\/p>\n

move_uploaded_file(\u4e34\u65f6\u6587\u4ef6\u5730\u5740,\u5b58\u653e\u5730\u5740)<\/p>\n

\u4f8b\u5982\uff1amove_uploaded_file($_FILES[‘userfile’][‘tmp_name’],\u2018upload\/123.jpg\u2019)<\/p>\n

is_dir() \u00a0\/\/\u5224\u65ad\u4e00\u4e2a\u76ee\u5f55\u662f\u5426\u5b58\u5728<\/p>\n

mkdir(‘upload’,0777) \u00a0 \/\/\u521b\u5efa\u4e00\u4e2a\u76ee\u5f55<\/p>\n

 <\/p>\n

php\u64cd\u4f5c\u6570\u636e\u5e93\uff08\u589e\u3001\u5220\u3001\u6539\u3001\u67e5\uff09<\/span><\/p>\n

$conn = mysql_connect(‘localhost’,’root’,’123′); \u00a0 \/\/\u8fde\u63a5<\/p>\n

mysql_select_db(‘school’); \u00a0 \u00a0\/\/\u9009\u62e9\u6570\u636e\u5e93<\/p>\n

mysql_query(‘SET NAMES UTF8’); \u00a0 \/\/ \u00a0\u8bbe\u7f6e\u5b57\u7b26\u96c6<\/p>\n

$query = “SELECT * FROM grade”; \u00a0 \/\/ \u67e5\u8be2grade\u8868\u4e0b\u6240\u6709\u4fe1\u606f<\/p>\n

$result = mysql_query($query); \u00a0 \/\/\u6267\u884c\u6210\u529f\uff0c\u8fd4\u56de\u6570\u7ec4<\/p>\n

print_r(mysql_fetch_array($result,MYSQL_ASSOC)); \u00a0 \/\/ \u67e5<\/span>\u770b\u8fd4\u56de\u6570\u7ec4\u4fe1\u606f<\/p>\n

mysql_free_result($result); \u00a0\/\/\u91ca\u653e\u8bb0\u5f55\u96c6\u8d44\u6e90<\/p>\n

mysql_close(); \u00a0\/\/\u5173\u95ed\u6570\u636e\u5e93<\/p>\n

 <\/p>\n

\u65b0\u589e\u6570\u636e
\n$query = “INSERT INTO grade (name,email,point,regdate) VALUES (‘\u80e1\u5fc3\u9e4f’,’bigbird@sina.com.cn’,67,NOW())”;
\n@mysql_query($query) or die(‘\u65b0\u589e\u9519\u8bef\uff1a’.mysql_error());<\/p>\n

\u4fee\u6539\u6570\u636e
\n$query = ‘UPDATE grade SET point=87 WHERE id=8’;
\n@mysql_query($query) or die(‘\u4fee\u6539\u9519\u8bef\uff1a’.mysql_error());<\/p>\n

\u5220\u9664\u6570\u636e
\n$query = “DELETE FROM grade WHERE id=8”;
\n@mysql_query($query) or die(‘\u5220\u9664\u9519\u8bef\uff1a’.mysql_error());<\/p>\n

 <\/p>\n

\u4f8b\u5b50\uff1a\u628a\u67d0\u8868\u7684\u6bcf\u884c\u6570\u636e\u90fd\u904d\u5386\u51fa\u6765<\/p>\n

$query = \"SELECT id,name,email,regdate FROM grade\";\r\n  $result = mysql_query($query) or die('SQL\u8bed\u53e5\u6709\u8bef\uff1a'.mysql_error());\r\n  while (!!$row = mysql_fetch_array($result)) {\r\n  echo $row['id'].'----'.$row['name'].'----'.$row['email'];\r\n  echo '<br \/>';\r\n }<\/pre>\n
php\u64cd\u4f5cmysql\u5e38\u7528\u51fd\u6570\uff1a<\/p>\n
mysql_fetch_array(); \u00a0 \/\/\u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4\uff0c\u663e\u793a\u6570\u636e\u5e93\u4fe1\u606f<\/p>\n
mysql_field_name($result,3) \u00a0 \/\/\u663e\u793a\u6307\u5b9a \u5b57\u6bb5\u540d\u79f0<\/p>\n
mysql_num_rows(); \u00a0\/\/\u6709\u591a\u5c11\u884c\u6570\u636e<\/p>\n
mysql_num_fields() \/\/ \u591a\u5c11\u5b57\u6bb5<\/p>\n
 <\/p>\n
 <\/p>\n
\u5b57\u7b26\u4e32\u622a\u53d6<\/p>\n
mb_substr($str,1,20,’utf-8′) \u00a0\/\/\u8f7d\u5165\u5b57\u7b26\u4e32\uff0c\u5f00\u59cb\u4f4d\u7f6e\uff0c\u622a\u53d6\u591a\u5c11\u5185\u5bb9\uff0c\u5b57\u7b26\u96c6<\/p>\n
\u83b7\u53d6\u5b57\u7b26\u4e32\u957f\u5ea6<\/p>\n
mb_strlen($str,’utf-8′)<\/p>\n
 <\/p>\n
php\u9762\u5411\u5bf9\u8c61<\/a><\/p>\n
php5<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
* \u53d8\u91cf\u548c\u5e38\u91cf\u533a\u5206\u5927\u5c0f\u5199 $a =10; $A =20; \u4ee5\u4e0a\u53d8\u91cf\u540d\u662f\u533a\u5206\u5927\u5c0f\u5199\u7684. echo Echo \u4e0d\u533a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,9],"tags":[],"class_list":["post-2985","post","type-post","status-publish","format-standard","hentry","category-php","category-9"],"_links":{"self":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts\/2985","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2985"}],"version-history":[{"count":0,"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts\/2985\/revisions"}],"wp:attachment":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2985"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2985"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}