php 批量过滤非法字符
<?php
function testAddslashes($array) {
if (!get_magic_quotes_gpc()) {
if (is_array($array)) {
foreach ($array as $key => $val) {
$array[$key] = testAddslashes($val);
}
} else {
$array = addslashes($array);
}
$array = str_replace("&#x", "& # x", $array); //过滤一些不安全字符s
$array = str_replace("<", "<", $array); //过滤<
}
return $array;
}
if ($_POST) {
print_r($_POST);
echo '过滤前<hr /> ';
$_POST = testAddslashes($_POST);
echo '<hr />过滤后<br />';
echo $_POST['textfield'];
}
?><!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>无标题文档</title> </head> <body> <form action="" method="post" enctype="multipart/form-data" name="form1" id="form1"> <label> <input type="text" name="textfield" /> </label> <p> <label> <input type="text" name="textfield2" /> </label> <label></label> </p> <p> <label> <input type="submit" name="Submit" value="提交" /> </label> </p> </form> </body> </html>
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