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@ 2015-03-30T10:43:21Z

<?php
$var = 15;
$len = strlen($var)-1;
$divide = 1;
for($i=1;$i<=$len;$i++){
    $divide .= 0;
}


echo floor($var/$divide)*$divide;

Output
Performance
VLD
References
Branches

floor: documentation ( source)

preferences:dark modelive preview

41.69 ms | 402 KiB | 5 Q