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run code in 300+ PHP versions simultaneously
<?php function zoza($arr) { $names = ''; foreach ($arr as $key => $val) { if (is_array($val)) { $names .= '"' . $key . '"'; $names .= zoza($val); } else { $names .= '"' . $key . '"' . '"' . $val . '"'; } } return $names ; } $data = [ 'a' => 'test', 'b' => [ [ ['something'] ] ] ]; $s = zoza($data); $h = hash('sha256', $s, false); echo $s, PHP_EOL, $h;
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
"a""test""b""0""0""0""something" 72597037bd2c14df0e4580cf79f83aed0657987cabd6f1f5968bc59dad634072

preferences:
79.47 ms | 406 KiB | 5 Q