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run code in 500+ PHP versions simultaneously
<?php function foo() { if (false) { yield 'foo'; yield 'bar'; } } var_dump([] === new ArrayObject()); var_dump((bool) new ArrayObject()); var_dump(!new ArrayObject()); var_dump(!foo()); var_dump((bool) foo()); var_dump(count(new ArrayObject())); var_dump(count([])); var_dump(count(foo())); var_dump(count(iterator_to_array(foo()))); var_dump(foo());
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
bool(false) bool(true) bool(false) bool(false) bool(true) int(0) int(0) int(1) int(0) object(Generator)#1 (0) { }
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
bool(false) bool(true) bool(false) bool(false) bool(true) int(0) int(0) Warning: count(): Parameter must be an array or an object that implements Countable in /in/uscsN on line 18 int(1) int(0) object(Generator)#1 (0) { }
Output for 8.0.0 - 8.0.9
bool(false) bool(true) bool(false) bool(false) bool(true) int(0) int(0) Fatal error: Uncaught TypeError: count(): Argument #1 ($var) must be of type Countable|array, Generator given in /in/uscsN:18 Stack trace: #0 {main} thrown in /in/uscsN on line 18
Process exited with code 255.
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
bool(false) bool(true) bool(false) bool(false) bool(true) int(0) int(0) Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, Generator given in /in/uscsN:18 Stack trace: #0 {main} thrown in /in/uscsN on line 18
Process exited with code 255.
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31.29 ms | 1148 KiB | 13 Q