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@ 2016-06-30T01:23:44Z

<?php
$values = ['0.3', '.5', '4', 'F', 'z', 4];
$n = count($values);

for ($i = 0; $i < $n - 1; ++$i) {
    for ($j = $i + 1; $j < $n; ++$j) {
        $pair = [$values[$i], $values[$j]];
        sort($pair);
        print var_export($pair[0], TRUE) . ' < ' . var_export($pair[1], TRUE) . "\n";
    }
}

Output
Performance
VLD
References
Branches

var_export: documentation ( source)
sort: documentation ( source)

preferences:dark modelive previewkey bindings

23.43 ms | 405 KiB | 5 Q