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<?php function convertHashtags($str) { $regex = '/@([a-zA-Z0-9]+[\sa-zA-Z0-9]*)/'; if(preg_match($regex,$str,$matches) === 1){ list($username,$name) = [$str , strtolower(str_replace(' ','',$matches[1]))]; return "<a href='profile?id=$name'>$username</a>"; } throw new Exception('Unable to find username in the given string'); } $string = 'I am @Marie Lee, nice to meet you!'; $string = convertHashtags($string); echo $string;
Output for git.master, git.master_jit, rfc.property-hooks
<a href='profile?id=marielee'>I am @Marie Lee, nice to meet you!</a>

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