3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('1','2','3'); var_dump(strcmp("test",$a) == 0); var_dump( is_null(strcmp("test",$a)) ); function Test() {return;} $null = Test(); var_dump(is_null($null));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: strcmp(): Argument #2 ($string2) must be of type string, array given in /in/D4eCO:3 Stack trace: #0 /in/D4eCO(3): strcmp('test', Array) #1 {main} thrown in /in/D4eCO on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 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
Warning: strcmp() expects parameter 2 to be string, array given in /in/D4eCO on line 3 bool(true) Warning: strcmp() expects parameter 2 to be string, array given in /in/D4eCO on line 4 bool(true) bool(true)
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 - 5.2.17
Notice: Array to string conversion in /in/D4eCO on line 3 bool(false) Notice: Array to string conversion in /in/D4eCO on line 4 bool(false) bool(true)
preferences:
309.04 ms | 402 KiB | 465 Q