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@ 2013-11-21T09:59:12Z

<?php

$a = array(null, 0, 1, 1.1, 1.15111, -10.22, "1,222", "1.1", array(1.1));

foreach ( $a as $i ) {
    var_dump(number_format($i, 2, '.', ''));
}

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
number_format: documentation ( source)

preferences:dark modelive preview

51.43 ms | 402 KiB | 5 Q