魔术引号
I have discovered that my host doesn't like either of the following directives in the .htaccess file:
php_flag magic_quotes_gpc Off
php_value magic_quotes_gpc Off
However, there is another way to disable this setting even if you don't have access to the server configuration - you can put a php.ini file in the directory where your scripts are with the directive:
magic_quotes_gpc = Off
However, these does not propogate unlike .htaccess rules, so if you launch from a sub-directory, you need the php.ini file in each directory you have as script entry points.
关闭魔术引号
magic_quotes_gpc 指令只能在系统级关闭，不能在运行时。也就是说不能用 ini_set()。
Example#1 在服务器端关闭魔术引号
下面是一个通过 php.ini 文件把这些选项设为 Off 的范例。更多信息请参见本手册的怎样修改配置设定。
; Magic quotes ; ; Magic quotes for incoming GET/POST/Cookie data. magic_quotes_gpc = Off ; Magic quotes for runtime-generated data, e.g. data from SQL, from exec(), etc. magic_quotes_runtime = Off ; Use Sybase-style magic quotes (escape ' with '' instead of \'). magic_quotes_sybase = Off
如果不能修改服务器端的配置文件，使用 .htaccess 也可以。范例如下：
php_flag magic_quotes_gpc Off
为了能写出移植性较强的代码（可以运行于任何环境），例如不能修改服务器配置的情况，下面的例子可以在运行时关闭 magic_quotes_gpc。但是这样做比较低效，适当的修改配置才是更好的办法。
Example#2 在运行时关闭魔术引号
<?php
if (get_magic_quotes_gpc()) {
function stripslashes_deep($value)
{
$value = is_array($value) ?
array_map('stripslashes_deep', $value) :
stripslashes($value);
return $value;
}
$_POST = array_map('stripslashes_deep', $_POST);
$_GET = array_map('stripslashes_deep', $_GET);
$_COOKIE = array_map('stripslashes_deep', $_COOKIE);
$_REQUEST = array_map('stripslashes_deep', $_REQUEST);
}
?>
add a note
User Contributed Notes关闭魔术引号
stuart at horuskol dot co dot uk
25-Apr-2008 04:26
25-Apr-2008 04:26
18-Dec-2006 04:20
PHP's magic quotes function has the strange behavior of not adding slashes to top level keys in GPC key/value pairs but adding the slashes in deeper level keys. To demonstrate, a URI of:
example.php?a'b[c'd]=e'f
produces:
array("a'b" => array("c\'d" => "e\'f"))
The current example for removing magic quotes does not do anything to keys, so after running stripslashes_deep, you would end up with:
array("a'b" => array("c\'d" => "e'f"))
Which, needless to say, is wrong. As if you had magic quotes off, it would have been:
array("a'b" => array("c'd" => "e'f"))
I have written a snippet of code compatible with PHP 4.0.0 and above that handles this correctly:
if (get_magic_quotes_gpc()) {
function undoMagicQuotes($array, $topLevel=true) {
$newArray = array();
foreach($array as $key => $value) {
if (!$topLevel) {
$key = stripslashes($key);
}
if (is_array($value)) {
$newArray[$key] = undoMagicQuotes($value, false);
}
else {
$newArray[$key] = stripslashes($value);
}
}
return $newArray;
}
$_GET = undoMagicQuotes($_GET);
$_POST = undoMagicQuotes($_POST);
$_COOKIE = undoMagicQuotes($_COOKIE);
$_REQUEST = undoMagicQuotes($_REQUEST);
}
sunrunner20
25-Nov-2006 11:10
25-Nov-2006 11:10
If php_flag magic_quotes_gpc off does not work
Use php_value magic_quotes_gpc off
insteadin your .htaccess file
rdk
09-Sep-2006 02:44
09-Sep-2006 02:44
The function parse_str() (http://us3.php.net/manual/en/function.parse-str.php) is also affected by magic_quotes_gpc, so if that function is called anywhere, stripslashes_deep won't be sufficient by itself.
dedlfix
20-Aug-2006 08:18
20-Aug-2006 08:18
The function stripslashes_deep() ignores slashes in the keys
For example a query string like this: ?foo'bar=baz'bal
Output of var_dump($_GET) is:
array(1) {
["foo\'bar"]=>
string(8) "baz\'bal"
}
after stripslashes_deep():
array(1) {
["foo\'bar"]=>
string(7) "baz'bal"
}
If you want the keys to be stripslashed too, you have to unset() the addslahed key and to add a stripslashed version. But keep in mind that this will change the order of the array.