3v4l.org

run code in 150+ php & hhvm versions
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<?php $a = function () use (&$a) { echo '.'; $a(); }; $a();
Output for 5.3.0 - 5.3.1, 5.3.3, 5.3.5 - 5.3.8, 5.3.10 - 5.3.15, 5.3.18 - 5.3.29, 5.4.1 - 5.4.4, 5.4.6 - 5.4.26, 5.4.28 - 7.1.0
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Process exited with code 137.
Output for 5.4.27
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Process exited with code 137.
Output for 5.4.5
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Process exited with code 137.
Output for 5.4.0
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Process exited with code 137.
Output for 5.3.17
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Process exited with code 137.
Output for 5.3.16
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Process exited with code 137.
Output for 5.3.9
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Process exited with code 137.
Output for 5.3.4
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Process exited with code 137.
Output for 5.3.2
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Process exited with code 137.