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run code in 300+ PHP versions simultaneously
<?php function foo() { $a = 0; $b = &$a; echo ++$a + $a++; } function bar() { $a = 0; echo ++$a + $a++; } foo(); // 3 bar(); // 2
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
22
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
32

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233.57 ms | 402 KiB | 259 Q