php addslashes在什么地方用，为什么？该如何处理-PHP Tutorial-php.cn

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php addslashes在什么地方用，为什么？该如何处理

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Jun 13, 2016 am 10:27 AM

mysqlphpquotsql

php addslashes在什么地方用，为什么？
php addslashes在什么地方用，为什么？

------解决方案--------------------
转义预定义字符。
http://www.w3school.com.cn/php/func_string_addslashes.asp
------解决方案--------------------
防止用户在输入框中输入"test or 1=1"之类的。就是防止sql注入的

------解决方案--------------------
为了避免'\0', ' , " , \ ,; 这些字符影响sql语句自身的解析，因为C语言里\0是字符串结尾，另外在Mysql里：',"是包裹字段名用的，\是转义，都具有特殊含义，所以加个\让Mysql忽略掉它们的特殊含义。

------解决方案--------------------
简单来说就是过滤非法字符，防止某些电脑高手侵入你的数据库。

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