- base64_decode: documentation ( source)
- trim: documentation ( source)
- base64_encode: documentation ( source)
- range: documentation ( source)
- str_pad: documentation ( source)
<?php
foreach (range(1,1000) as $int) {
$trimmed = base64_decode(trim(str_pad(base64_encode($int), 7, '0', STR_PAD_LEFT), '='));
$untrimmed = base64_decode(base64_encode($int));
echo "{$int}: TRIMMED:" . ($trimmed == $int ? 'Pass' : 'Fail') . " ({$trimmed}) " .
" UNTRIMMED: " . ($untrimmed == $int ? 'Pass' : 'Fail') . "({$untrimmed})" .
"\n";
}