$re = '/(?<_KEY_1>[^|=]+)=(?<_VAL_1>[^|]+)/';
$str = '2018-01-07 01:50:39,296|INFO|ServiceName=xxxx|DropId=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxx|JobNumber=(xxx)|DropNumber=(xxx)|StampCycle=xxxx|TotalFiles=xx|FileId=xxxxxxx-xxx-xxxx-xxxx-xxxxxxxxxxxxxxx|QueueName: xxx_xxxxx_xxxxxx, GUID: xxxxxx-xxxx-xxxx-xxxx-xxxxxxx';
preg_match_all($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