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@ 2014-02-28T11:56:44Z

<?php
$a = '1';
$a = trim($a);
        if(!empty($a)){
            $a =  '( '. $a . ' ) ';
        }

Output
Performance
VLD
References
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trim: documentation ( source)

preferences:dark modelive preview

51.28 ms | 402 KiB | 5 Q