text file_get_contents txt function ch re tex file_get_contents re pre

<?

$text=file_get_contents('1.txt');

function ch($re){
$tex=file_get_contents($re[1]);

preg_match("/<title>(.*?)<\/title>/",$tex,$tit);

$title="<a href=\"$re[1]\">".$tit[1]."</a>";

print_r($tit);

}


$text=preg_replace_callback("/<a href=\"(.*?)\">(.*?)<\/a>/","ch",$text);

file_put_contents('1.txt',$text);
?>