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@ 2018-01-28T06:00:07Z

<?php

$number = 12345;
$nString = "$number";
$newNumber = '';
for($i = strlen($nString) - 1; $i >= 0; $i--) {
    $newNumber .= $nString[$i];
}
var_dump($newNumber);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

80.85 ms | 1569 KiB | 5 Q