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(PHP 4, PHP 5)
set_magic_quotes_runtime — 设置当前 magic_quotes_runtime 配置选项的激活状态
$new_setting 
   )设置当前 magic_quotes_runtime 配置选项的激活状态。
自 PHP 5.3.0 起,已经废弃此函数。强烈建议不要应用此函数 。
自 PHP 5.3 起,该函数已经被弃用,执行它的时候会抛出 E_DEPRECATED 异常。 自 PHP 5.4 起,尝试开启 magic quotes 时该函数会产生一个 E_CORE_ERROR 错误。
new_setting 
       关闭是  FALSE ,开启是  TRUE 。
      
   成功时返回  TRUE , 或者在失败时返回  FALSE 。
  
Example #1 set_magic_quotes_runtime() 例子
  <?php
 // 创建临时文件指针
 $fp  =  tmpfile ();
 // 写入一些数据
 fwrite ( $fp ,  '\'PHP\' is a Recursive acronym' );
 // 没有 magic_quotes_runtime
 rewind ( $fp );
 set_magic_quotes_runtime ( false );
echo  'Without magic_quotes_runtime: '  .  fread ( $fp ,  64 ),  PHP_EOL ;
 // 有 magic_quotes_runtime
 rewind ( $fp );
 set_magic_quotes_runtime ( true );
echo  'With magic_quotes_runtime: '  .  fread ( $fp ,  64 ),  PHP_EOL ;
 // 清理
 fclose ( $fp );
 ?>   以上例程会输出:
Without magic_quotes_runtime: 'PHP' is a Recursive acronym With magic_quotes_runtime: \'PHP\' is a Recursive acronym
[#1] Anonymous [2013-10-08 09:39:12]
A simple check and disabling of magic quotes whenever needed (e.g. if you deploy to multiple servers or you don't know the target server's PHP version).
<?php
if(version_compare(PHP_VERSION, '5.3.0', '<')){
    set_magic_quotes_runtime(0);
}
?>
[#2] serpent at paradise dot net dot nz [2012-08-02 02:56:28]
Be aware that even using ini_set to set 'magic_quotes_runtime' will stop working in PHP 5.4. See http://php.net/manual/en/info.configuration.php#ini.magic-quotes-runtime
[#3] gusb at NOSPAM dot mailinator dot com [2011-10-10 04:14:52]
You should NEVER rely on magic quotes or addslashes for security in an SQL context. You should ALWAYS use proper escape functions, such as mysql_real_escape_string. Failure to do so may result in an SQL injection vulnerability.
[#4] Anonymous [2010-08-18 03:13:35]
Since this function is depracted as of PHP 5.3, use ini_set('magic_quotes_runtime', 0); instead.
[#5] php at nospam-qualystem dot com [2003-01-09 05:49:05]
get_magic_quotes runtime and set_magic_quotes_runtime are useful when you want to read some data in a binary file using fread() and some bytes in such file may be interpreted as \ (backslash), " (double quotes), ' (simple quote) or any "special" character that has a meaning for string processing.