$re = '/.*\/Title\(([^\)]*)\).*/';
$str = 'randomtestdata 4012 obj<</Title(Here is my title)/CreationDate(D:5423415)>>
randomtestdata 4012 obj<</CreationDate(D:5423415)/Title(Here is my title)>>
randomtestdata 4012 obj/Title(Here is my title)<</CreationDate(D:5423415))>>
randomtestdata/Title(Here is my title) 4012 obj<</CreationDate(D:5423415))>>';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php