3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array( 0=>array( 'arrival' => 1, 'uid' => 1 ), 1=>array( 'arrival' => 0, 'uid' => 2 ) ); $b = array( 0=>array( 'arrival' => 1, 'uid' => 1 ) ); var_dump(array_udiff($a, $b, 'diff')); function diff($a, $b) { return $a - $b; }
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: Unsupported operand types: array - array in /in/vBpBV:21 Stack trace: #0 [internal function]: diff(Array, Array) #1 /in/vBpBV(19): array_udiff(Array, Array, 'diff') #2 {main} thrown in /in/vBpBV on line 21
Process exited with code 255.
Output for 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
Fatal error: Uncaught Error: Unsupported operand types in /in/vBpBV:21 Stack trace: #0 [internal function]: diff(Array, Array) #1 /in/vBpBV(19): array_udiff(Array, Array, 'diff') #2 {main} thrown in /in/vBpBV on line 21
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Unsupported operand types in /in/vBpBV on line 21
Process exited with code 255.
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241.18 ms | 402 KiB | 330 Q