3v4l.org

run code in 300+ PHP versions simultaneously
<?php function init(){ error(); } function error() { var_dump( debug_backtrace(DEBUG_BACKTRACE_PROVIDE_OBJECT, 1) ); } init();
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.3.7
array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/X5cB5" ["line"]=> int(4) ["function"]=> string(5) "error" ["args"]=> array(0) { } } }
Output for 5.3.6 - 5.3.29
Warning: debug_backtrace() expects at most 1 parameter, 2 given in /in/X5cB5 on line 8 NULL
Output for 5.2.5 - 5.2.17, 5.3.0 - 5.3.5
Notice: Use of undefined constant DEBUG_BACKTRACE_PROVIDE_OBJECT - assumed 'DEBUG_BACKTRACE_PROVIDE_OBJECT' in /in/X5cB5 on line 8 Warning: debug_backtrace() expects at most 1 parameter, 2 given in /in/X5cB5 on line 8 NULL
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.4
Notice: Use of undefined constant DEBUG_BACKTRACE_PROVIDE_OBJECT - assumed 'DEBUG_BACKTRACE_PROVIDE_OBJECT' in /in/X5cB5 on line 8 Warning: Wrong parameter count for debug_backtrace() in /in/X5cB5 on line 8 NULL

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