$re = '/This is the Start for the Test : 1([\S\s]*?) This is the End for the Test : 1/';
$str = '1) /* This is the Start for the Test : 1 */
2) Lu8_Ret = GetStatus_1();
3) Lu8_Ret = Lu8_Ret + 1;
4)/* This is the End for the Test : 1 */
5)
6) /* This is the Start for the Test : 2 */
7) Lu8_Ret = GetStatus_2();
8) Lu8_Ret = Lu8_Ret + 1;
9) /* This is the End for the Test : 2 */
10)
11) /* This is the Start for the Test : 1 */
12) Lu8_Ret = GetStatus_1();
13) /* This is the End for the Test : 1 */';
preg_match_all($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