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run code in 300+ PHP versions simultaneously
<?php error_reporting(0); class a { var $x = 0; function a() { echo "CONSTRUCTOR CALLED\r\n"; } function b($var) { return $var . 'x'; } } print_r(array_map(array('a', 'b'), array('a', 'b')));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6

Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; a has a deprecated constructor in /in/JC4tl on line 5 Array ( [0] => ax [1] => bx )
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.3.32 - 7.3.33
Array ( [0] => ax [1] => bx )

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