Online PHP editor | output for 22FJe

@ 2016-07-10T11:07:24Z

<?php 

$input = [
    'a' => 'value a',
    'b' => [
        1 => [],
        2 => 'value b2',
        3 => [
            'x' => 'value x',
            'y' => [
            	'value z',
            	''
            ]
        ],
    	'c' => ''
    ],
    'c' => ''
];

function findEmpties($input, $currentLevel = null) {
	static $empties = [];

	foreach ($input as $key => $value) {
		$levelItem = $currentLevel ? "{$currentLevel}[{$key}]" : $key;
		if (empty($value)) {
			$empties['empty'][] = $levelItem;
		} else {
			if (is_array($value)) {
				findEmpties($value, $levelItem);
			}
		}
	}

	return $empties;
}
print_r(findEmpties($input));

Output for 5.6.0 - 5.6.23, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1: Array ( [empty] => Array ( [0] => b[1] [1] => b[3][y][1] [2] => b[c] [3] => c ) )
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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