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<?php $samples=array( array('a1','a2'), array('b1','b2'), array('c1','c2') ); $names = array_column($samples, ['0']); print_r($names);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught TypeError: array_column(): Argument #2 ($column_key) must be of type string|int|null, array given in /in/Sn61Q:7 Stack trace: #0 /in/Sn61Q(7): array_column(Array, Array) #1 {main} thrown in /in/Sn61Q on line 7
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 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_column(): The column key should be either a string or an integer in /in/Sn61Q on line 7
Output for 5.4.0 - 5.4.45
Fatal error: Call to undefined function array_column() in /in/Sn61Q on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Sn61Q on line 7
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 '[' in /in/Sn61Q on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Sn61Q on line 7
Process exited with code 255.

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