<?php
$str = "Hello world. (can you hear me?)";
echo quotemeta($str);
?>
The output of the code above will be:
Hello world\. \(can you hear me\?\)
(PHP 4, PHP 5, PHP 7, PHP 8)
quotemeta — メタ文字をクォートする
文字列 str について、
\) でクォートして返します。
string入力文字列。
メタ文字をクォートした文字列を返します。
空文字を string に渡した場合は false を返します。
例1 quotemeta() の例
<?php
var_dump(quotemeta('PHP is a popular scripting language. Fast, flexible, and pragmatic.'));
?>上の例の出力は以下となります。
string(69) "PHP is a popular scripting language\. Fast, flexible, and pragmatic\."
注意: この関数はバイナリデータに対応しています。
<?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).