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@ 2014-07-25T15:05:35Z

<?php
$test = array(5.01,5.4,5.1,5.2,5.3,5.5,4.2,4.05,6.9);

usort($test, function ($a, $b) {
    return ceil($a - $b);
});

print_r($test);

Output
Performance
VLD
References
Branches

print_r: documentation ( source)
ceil: documentation ( source)
usort: documentation ( source)

preferences:dark modelive preview

33.83 ms | 402 KiB | 5 Q