$re = '/=([^;]*;)[^;]*;([^;]*;)[^;]*;([^;]*;)([^;]*;)([^;]*;)([^;]*;)(.*)/';
$str = '2017-07-13 11:23:43.717948 [CRIT] mod_dptools.c:1713 SRC=123;1234567890;00000000;2222222;7479569217;87654321;300067;333;-1';
preg_match_all($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