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<?php // Mapeia a função de callback para elementos de um array. print_r(array_map(function($name) { return "Olá, " . ucfirst($name) . "!"; }, $names));
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $names in /in/5sRk9 on line 6 Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, null given in /in/5sRk9:4 Stack trace: #0 /in/5sRk9(4): array_map(Object(Closure), NULL) #1 {main} thrown in /in/5sRk9 on line 4
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Warning: Undefined variable $names in /in/5sRk9 on line 6 Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, null given in /in/5sRk9:6 Stack trace: #0 /in/5sRk9(6): array_map(Object(Closure), NULL) #1 {main} thrown in /in/5sRk9 on line 6
Process exited with code 255.
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined variable: names in /in/5sRk9 on line 6 Warning: array_map(): Expected parameter 2 to be an array, null given in /in/5sRk9 on line 6
Output for 7.3.32 - 7.3.33, 7.4.26
Warning: array_map(): Expected parameter 2 to be an array, null given in /in/5sRk9 on line 6
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.1.26 - 7.1.33, 7.2.0 - 7.2.33
Notice: Undefined variable: names in /in/5sRk9 on line 6 Warning: array_map(): Argument #2 should be an array in /in/5sRk9 on line 6
Output for 7.1.10

Process exited with code 137.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/5sRk9 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/5sRk9 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/5sRk9 on line 4
Process exited with code 255.

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