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<?php var_dump(array_filter(array_map('imageFilename', array())));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback or null, function "imageFilename" not found or invalid function name in /in/57Bvu:4 Stack trace: #0 /in/57Bvu(4): array_map('imageFilename', Array) #1 {main} thrown in /in/57Bvu on line 4
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback, function "imageFilename" not found or invalid function name in /in/57Bvu:4 Stack trace: #0 /in/57Bvu(4): array_map('imageFilename', Array) #1 {main} thrown in /in/57Bvu on line 4
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 - 5.6.30, 7.0.0 - 7.0.20, 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: array_map() expects parameter 1 to be a valid callback, function 'imageFilename' not found or invalid function name in /in/57Bvu on line 4 Warning: array_filter() expects parameter 1 to be array, null given in /in/57Bvu on line 4 NULL

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233.92 ms | 404 KiB | 362 Q