3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [[1, 2], [1, 2]]; $a["b"] = [1, 3]; $a["a"] = [1, 3]; $a[5] = [1, 3]; $b = ""; if (+$b) echo "1\n\n\n"; array_unshift($a, [3, 4]); print_r($a);

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37.3 ms | 402 KiB | 5 Q