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(PHP 4, PHP 5)
quotemeta — Quoten von Meta-Zeichen
Der Inhalt von str wird mit einem Rückstrich ("Backslash", \) vor jedem Vorkommen von
Die Eingabezeichenkette.
Gibt die Zeichenkette mit gequoteten Metazeichen zurück.
Hinweis: Diese Funktion ist binary safe.
<?php
$str = "Hello world. (can you hear me?)";
echo quotemeta($str);
?>
The output of the code above will be:
Hello world\. \(can you hear me\?\)
Took me a while to realize this was NOT the command I wanted for escaping potentially harmful characters in a string that would be used as part of a system command. Instead, I needed either escapeshellarg() (http://www.php.net/manual/en/function.escapeshellarg.php) or escapeshellcmd() (http://www.php.net/manual/en/function.escapeshellcmd.php)
This function escapes characters that have special meaning in regular expressions. preg_quote() <http://php.net/manual/en/function.preg-quote.php> has similar functionality, but is more powerful since it escapes more characters (including one user-specified character).
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