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run code in 300+ PHP versions simultaneously
<?php class A { protected $i = 1; public function __toString() { $this->i++; return "$this->i"; } } $a = new A; var_dump($a); $b = [100, $a]; var_dump( $a, array_intersect($b, $b), $a );

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46.6 ms | 402 KiB | 5 Q