3v4l.org

run code in 300+ PHP versions simultaneously
<?php $params = ['a' => 'b']; array_filter($params, function ($v, $k) { return substr($k, 0, 7) == 'filter_'; });
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 1 passed and exactly 2 expected in /in/GkoN1:3 Stack trace: #0 [internal function]: {closure}('b') #1 /in/GkoN1(3): array_filter(Array, Object(Closure)) #2 {main} thrown in /in/GkoN1 on line 3
Process exited with code 255.
Output for 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
Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 1 passed and exactly 2 expected in /in/GkoN1:3 Stack trace: #0 [internal function]: {closure}('b') #1 /in/GkoN1(5): array_filter(Array, Object(Closure)) #2 {main} thrown in /in/GkoN1 on line 3
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20
Warning: Missing argument 2 for {closure}() in /in/GkoN1 on line 3 Notice: Undefined variable: k in /in/GkoN1 on line 4

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