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@ 2015-03-20T03:02:58Z

<?php

function test($val) {
    $retVal = var_export(empty($val));
    printf("%s: %s\n", $val, $retVal);
}

test(0);
test('');
test(null);
test(false);

Output
Performance
VLD
References
Branches

var_export: documentation ( source)
printf: documentation ( source)

preferences:dark modelive preview

50.52 ms | 402 KiB | 5 Q