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@ 2014-03-20T16:15:02Z

<?php
$row = 'one        //There are spaces here
two  ';
$row = explode(PHP_EOL,$row);
$row = $row[0];
preg_match('/( +)$/',$row,$matches);

Output
Performance
VLD
References
Branches

preg_match: documentation ( source)
explode: documentation ( source)

preferences:dark modelive preview

37.69 ms | 402 KiB | 5 Q