Das PHP Script Verzeichnis
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Die folgene Routine wandelt Textlink in HTML Links um

function text2links($str='') {

if($str=='' or !preg_match('/(http|www.|@)/i', $str)) { return $str; }

$lines = explode("n", $str); $new_text = '';
while (list($k,$l) = each($lines)) {
// replace links:
$l = preg_replace("/([ t]|^)www./i", "\1http://www.", $l);
$l = preg_replace("/([ t]|^)ftp./i", "\1ftp://ftp.", $l);

$l = preg_replace("/(http://[^ )rn!]+)/i",
"<a href="\1">\1</a>", $l);

$l = preg_replace("/(https://[^ )rn!]+)/i",
"<a href="\1">\1</a>", $l);

$l = preg_replace("/(ftp://[^ )rn!]+)/i",
"<a href="\1">\1</a>", $l);

$l = preg_replace(
"/([-a-z0-9_]+(.[_a-z0-9-]+)*@([a-z0-9-]+(.[a-z0-9-]+)+))/i",
"<a href="mailto:\1">\1</a>", $l);

$new_text .= $l."n";
}

return $new_text;
}
[/php]