Text in HTML Links wandeln

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]
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