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run code in 300+ PHP versions simultaneously
<?php class A { protected $i = 0; /*public function __toString() { $this->i++; return "$this->i"; }*/ } $a = new A; # echo $a; $b = [100, $a]; var_dump( array_intersect($b, $b) );

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57.49 ms | 402 KiB | 5 Q