htmlspecialchars跟addslashes和et_magic_quotes_gpc的区别
htmlspecialchars和addslashes和et_magic_quotes_gpc的区别
htmlspecialchars和
addslashes和
et_magic_quotes_gpc
这三个玩意好象没有区别,似乎又有区别,不知如何处理三者之间的关系呢
------解决思路----------------------
htmlspecialchars 转换成html实体，偶尔在存入数据库之前把html转为实体存储（一般是富文本编辑的内容）
addslashes 转义特殊符号，一般在查数据库的时候会先转义特殊字符，防止sql注入
get_magic_quotes_gpc 判断magic_quotes_gpc（若开启的话，php会对GET、POST 和 COOKIE 数据自动运行 addslashes）是否开启，防止你二次转义
------解决思路----------------------
htmlspecialchars() 函数把一些预定义的字符转换为 HTML 实体。
预定义的字符是：
& （和号） 成为 &
" （双引号） 成为 "
' （单引号） 成为 '
addslashes() 函数在指定的预定义字符前添加反斜杠。
默认情况下，PHP 指令 magic_quotes_gpc 为 on，对所有的 GET、POST 和 COOKIE 数据自动运行 addslashes()。不要对已经被 magic_quotes_gpc 转义过的字符串使用 addslashes()，因为这样会导致双层转义。遇到这种情况时可以使用函数 get_magic_quotes_gpc() 进行检测。
et_magic_quotes_gpc 这个应该是
get_magic_quotes_gpc():
查看magic_quotes_gpc值.0=关闭.1=打开
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