quoted_printable_encode
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)
quotemeta
(PHP 4, PHP 5)
quotemeta — Escapa los meta caracteres
Descripción
string quotemeta
( string $cadena
)
Devuelve la misma cadena original pero previamente inserta una barra invertida (\) antes de cada carácter que se encuentre en este grupo:
. \ + * ? [ ^ ] ( $ )
Note: Esta función es segura binariamente.
Vea también addslashes(), htmlentities(), htmlspecialchars(), nl2br() y stripslashes().
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User Contributed Notesquotemeta
George Adams
16-Feb-2006 08:57
16-Feb-2006 08:57
15-May-2001 03:41
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).