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<?php $bb_string = "...du texte [URL]http://developpez.net/[/URL], du texte... [URL]developpez.net/[/URL] du texte... [URL=http://developpez.net/]Un lien[/URL] du texte... [URL=developpez.net/]http://developpez.net/[/URL]"; $bb_string = preg_replace_callback('~\[url (?| = ([^]]*) ] ( [^[]*+ (?:\[(?!/url) [^[]*)*+ ) | ] (( [^[]*+ (?:\[(?!/url) [^[]*)*+ )) ) \[/url]~ix', function ($m) { $url = trim($m[1]); return '<a href="' . ( parse_url($m[1], PHP_URL_SCHEME) ? '' : 'http://') . $m[1] . '" target="_blank">' . trim($m[2]) . '</a>'; }, $bb_string); echo $bb_string;

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