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run code in 300+ PHP versions simultaneously
<?php function foo() { var_dump(bar()); } function bar() { return debug_backtrace(); } call_user_func("foo");
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
array(2) { [0]=> array(4) { ["file"]=> string(9) "/in/YdubX" ["line"]=> int(3) ["function"]=> string(3) "bar" ["args"]=> array(0) { } } [1]=> array(4) { ["file"]=> string(9) "/in/YdubX" ["line"]=> int(8) ["function"]=> string(3) "foo" ["args"]=> array(0) { } } }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
array(3) { [0]=> array(4) { ["file"]=> string(9) "/in/YdubX" ["line"]=> int(3) ["function"]=> string(3) "bar" ["args"]=> array(0) { } } [1]=> array(2) { ["function"]=> string(3) "foo" ["args"]=> array(0) { } } [2]=> array(4) { ["file"]=> string(9) "/in/YdubX" ["line"]=> int(8) ["function"]=> string(14) "call_user_func" ["args"]=> array(1) { [0]=> &string(3) "foo" } } }
Output for 5.0.0 - 5.0.4
array(3) { [0]=> array(4) { ["file"]=> string(9) "/in/YdubX" ["line"]=> int(3) ["function"]=> string(3) "bar" ["args"]=> array(0) { } } [1]=> array(4) { ["file"]=> string(9) "/in/YdubX" ["line"]=> int(8) ["function"]=> string(3) "foo" ["args"]=> array(0) { } } [2]=> array(4) { ["file"]=> string(9) "/in/YdubX" ["line"]=> int(8) ["function"]=> string(14) "call_user_func" ["args"]=> array(1) { [0]=> &string(3) "foo" } } }

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