php防止sql注入漏洞過濾函數(shù)的代碼
php的整站防sql注入程序，在公共文件中require_once本文件即可，感興趣的朋友可以參考下。
復(fù)制代碼 代碼如下:
<?PHP
/pic/p>
/pic/p>
if (@get_magic_quotes_gpc ()) {
$_GET = sec ( $_GET );
$_POST = sec ( $_POST );
$_COOKIE = sec ( $_COOKIE );
$_FILES = sec ( $_FILES );
}
$_SERVER = sec ( $_SERVER );
function sec(&$array) {
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if (is_array ( $array )) {
foreach ( $array as $k => $v ) {
$array [$k] = sec ( $v );
}
} else if (is_string ( $array )) {
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$array = addslashes ( $array );
} else if (is_numeric ( $array )) {
$array = intval ( $array );
}
return $array;
}
/pic/p>
function num_check($id) {
if (! $id) {
die ( '參數(shù)不能為空！' );
} /pic/p>
else if (inject_check ( $id )) {
die ( '非法參數(shù)' );
} /pic/p>
else if (! is_numetic ( $id )) {
die ( '非法參數(shù)' );
}
/pic/p>
$id = intval ( $id );
/pic/p>
return $id;
}
/pic/p>
function str_check($str) {
if (inject_check ( $str )) {
die ( '非法參數(shù)' );
}
/pic/p>
$str = htmlspecialchars ( $str );
/pic/p>
return $str;
}
function search_check($str) {
$str = str_replace ( "_", "\_", $str );
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$str = str_replace ( "%", "\%", $str );
/pic/p>
$str = htmlspecialchars ( $str );
/pic/p>
return $str;
}
/pic/p>
function post_check($str, $min, $max) {
if (isset ( $min ) && strlen ( $str ) < $min) {
die ( '最少$min字節(jié)' );
} else if (isset ( $max ) && strlen ( $str ) > $max) {
die ( '最多$max字節(jié)' );
}
return stripslashes_array ( $str );
}
/pic/p>
function inject_check($sql_str) {
return eregi ( 'select|inert|update|delete|\'|\/\*|\*|\.\.\/|\.\/|UNION|into|load_file|outfile', $sql_str );
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}
function stripslashes_array(&$array) {
if (is_array ( $array )) {
foreach ( $array as $k => $v ) {
$array [$k] = stripslashes_array ( $v );
}
} else if (is_string ( $array )) {
$array = stripslashes ( $array );
}
return $array;
}
?>
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