$re = '/(\b\d+\b),\s*(\btext\d+\b)/';
$str = '
CustomerID:1111,
text1
CustomerID:2222,
text2
CustomerID:3333,
text3
CustomerID:4444,
text4
CustomerID:5555,
text5
';
preg_match_all($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