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run code in 300+ PHP versions simultaneously
<?php function test($str) { test2($str); } function test2($str) { test3($str); } function test3($str) { echo "before: ".round(memory_get_usage()/1024/1024, 2)." MB\n"; debug_backtrace(false); echo "after: ".round(memory_get_usage()/1024/1024, 2)." MB\n"; } test(str_repeat('a', 10000000));
Output for 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
before: 9.91 MB after: 9.91 MB
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
before: 9.87 MB after: 9.87 MB
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
before: 9.75 MB after: 38.36 MB
Output for 5.3.0 - 5.3.29
before: 10.13 MB after: 38.74 MB
Output for 5.2.5 - 5.2.17
before: 9.62 MB after: 38.23 MB
Output for 5.2.1 - 5.2.4
before: 9.62 MB Warning: Wrong parameter count for debug_backtrace() in /in/cJpmi on line 10 after: 9.62 MB
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/cJpmi on line 9
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_usage() in /in/cJpmi on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: memory_get_usage() in /in/cJpmi on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_usage() in /in/cJpmi on line 9
preferences:
231.76 ms | 401 KiB | 325 Q