<?php $params = array("full"); $route = "/user/[a-z0-9:username]+"; echo preg_replace_callback('~\[([a-z0-9\.\-_\+]+)\:([a-z0-9\_]+)\](\+|\*|\{[0-9]+(?:,[0-9]+)?\})?~', function($matches) use($params) { $params[] = $matches[2]; return '[' . $matches[1] . ']' . $matches[3]; }, $route); var_dump($params);
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