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run code in 300+ PHP versions simultaneously
<?php function test() { echo "TEST\n"; } $a = ['x', 'y', 'z']; test() =& $a; var_dump($x);
Output for 8.5.0 - 8.5.1
Fatal error: Can't use function return value in write context in /in/XW65N on line 9 Stack trace: #0 {main}
Process exited with code 255.
Output for 8.1.34, 8.2.27 - 8.2.30, 8.3.0 - 8.3.29, 8.4.1 - 8.4.16
Fatal error: Can't use function return value in write context in /in/XW65N on line 9
Process exited with code 255.

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