quotemeta
preg_quote例
<?php
$s = "./backdoor.php?page_name=body_index_1.htm&type=text&num=0";
echo quotemeta($s); //\./backdoor\.php\?page_name=body_index_1\.htm&type=text&num=0
echo preg_quote($s); //./backdoor\.php\?page_name\=body_index_1\.htm&type\=text&num\=0
echo preg_quote($s,"/"); //\.\/backdoor\.php\?page_name\=body_index_1\.htm&type\=text&num\=0
?>
preg_quote例
<?php
$s = "./backdoor.php?page_name=body_index_1.htm&type=text&num=0";
echo quotemeta($s); //\./backdoor\.php\?page_name=body_index_1\.htm&type=text&num=0
echo preg_quote($s); //./backdoor\.php\?page_name\=body_index_1\.htm&type\=text&num\=0
echo preg_quote($s,"/"); //\.\/backdoor\.php\?page_name\=body_index_1\.htm&type\=text&num\=0
?>
是不是用quotemeta好象里面的＂＝＂不用转意的是吗？？
perl里面的"="有什么用吗？？