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<?php $array = [ 0 => [ 'val' => 3, 'param' => 2 ], 1 => [ 'val' => 3, 'param' => 10 ] ]; echo max(array_map( array_column($a, 'param'), $array ));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $a in /in/LZrXm on line 14 Fatal error: Uncaught TypeError: array_column(): Argument #1 ($array) must be of type array, null given in /in/LZrXm:14 Stack trace: #0 /in/LZrXm(14): array_column(NULL, 'param') #1 {main} thrown in /in/LZrXm on line 14
Process exited with code 255.

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