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@ 2014-08-02T15:34:26Z

<?php

function coalesce($default, &...$args) {
    return current(array_filter($args)) ?: $default;
}

$empty1 = [];
$empty2 = '';

$value1 = 'not empty!';

echo coalesce('default', $empty1, $undefined, $empty2);
echo coalesce('default', $empty1, $undefined, $value1, $empty2);

Output
Performance
VLD
References
Branches

array_filter: documentation ( source)
current: documentation ( source)

preferences:dark modelive preview

36.12 ms | 402 KiB | 5 Q