Comments on: Filename safe http://phpit.net/code/filename-safe/ PHPit has dozens of PHP articles, codesnippets and FAQ's. Fri, 16 May 2008 03:47:59 +0000 http://wordpress.org/?v=2.0.4 by: Dennis Pallett http://phpit.net/code/filename-safe/#comment-116 Wed, 16 Nov 2005 20:29:13 +0000 http://phpit.net/code/filename-safe/#comment-116 Thanks for sharing! Thanks for sharing!

]]> by: maxhb http://phpit.net/code/filename-safe/#comment-115 Wed, 16 Nov 2005 17:01:05 +0000 http://phpit.net/code/filename-safe/#comment-115 Hi! The following will convert any string to filesystem safe characters and handle german umlauts as well. In favor of the above solution this one is faster and more reliable as it e.g. preserves dots within filenames which are usually used to separate filenames and file extensions. function safe_filename ($filename) { $search = array( // Definition of German Umlauts START '/ß/', '/ä/','/Ä/', '/ö/','/Ö/', '/ü/','/Ü/', // Definition of German Umlauts ENDE '([^[:alnum:]._])' // Disallow: Not alphanumeric, dot or underscore ); $replace = array( 'ss', 'ae','Ae', 'oe','Oe', 'ue','Ue', '_' ); return preg_replace($search,$replace,$filename); } Hi!
The following will convert any string to filesystem safe characters and handle german umlauts as well.
In favor of the above solution this one is faster and more reliable as it e.g. preserves dots within filenames which are usually used to separate filenames and file extensions.

function safe_filename ($filename) {
$search = array(
// Definition of German Umlauts START
‘/ß/’,
‘/ä/’,'/Ä/’,
‘/ö/’,'/Ö/’,
‘/ü/’,'/Ü/’,
// Definition of German Umlauts ENDE
‘([^[:alnum:]._])’ // Disallow: Not alphanumeric, dot or underscore
);
$replace = array(
’ss’,
‘ae’,'Ae’,
‘oe’,'Oe’,
‘ue’,'Ue’,
‘_’
);
return preg_replace($search,$replace,$filename);
}

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