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run code in 300+ PHP versions simultaneously
<?php function brokenTrace($arg1, $arg2) { backtraceWrapper(); unset($arg1); backtraceWrapper(); unset($arg2); backtraceWrapper(); } function backtraceWrapper() { $bt = debug_backtrace(); $args = $bt[1]['args']; print_r($args); var_dump(iterator_to_array($args)); for ($i = 0; $i < count($args); $i++) { var_dump($args[$i]); } } brokenTrace("A", "B");
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [0] => A [1] => B ) array(2) { [0]=> string(1) "A" [1]=> string(1) "B" } string(1) "A" string(1) "B" Array ( [0] => [1] => B ) array(2) { [0]=> NULL [1]=> string(1) "B" } NULL string(1) "B" Array ( [0] => [1] => ) array(2) { [0]=> NULL [1]=> NULL } NULL NULL
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Array ( [0] => A [1] => B ) Fatal error: Uncaught TypeError: iterator_to_array(): Argument #1 ($iterator) must be of type Traversable, array given in /in/igHPm:18 Stack trace: #0 /in/igHPm(18): iterator_to_array(Array) #1 /in/igHPm(5): backtraceWrapper() #2 /in/igHPm(25): brokenTrace('A', 'B') #3 {main} thrown in /in/igHPm on line 18
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Array ( [0] => A [1] => B ) Fatal error: Uncaught TypeError: Argument 1 passed to iterator_to_array() must implement interface Traversable, array given in /in/igHPm:18 Stack trace: #0 /in/igHPm(18): iterator_to_array(Array) #1 /in/igHPm(5): backtraceWrapper() #2 /in/igHPm(25): brokenTrace('A', 'B') #3 {main} thrown in /in/igHPm on line 18
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Array ( [0] => A [1] => B ) Catchable fatal error: Argument 1 passed to iterator_to_array() must implement interface Traversable, array given, called in /in/igHPm on line 5 and defined in /in/igHPm on line 18
Process exited with code 255.
preferences:
225.47 ms | 402 KiB | 340 Q