3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [ [ 'ID' => 3, 'Username' => 'TomC', 'Project_Name' => 'Inventory' ], [ 'ID' => 4, 'Username' => 'JakeP', 'Project_Name' => 'Inventory' ], [ 'ID' => 2, 'Username' => 'TomC', 'Project_Name' => 'Stocks'' ],[ 'ID' => 1, 'Username' => 'Tomc', 'Project_Name' => 'Stocks' ] ]; $b = array_unique( array_column($a, 'Username') ); print_r($b);
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected ''' (T_CONSTANT_ENCAPSED_STRING), expecting ']' in /in/3OlWP on line 19
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/3OlWP on line 2
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/3OlWP on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/3OlWP on line 2
Process exited with code 255.
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210.97 ms | 1395 KiB | 123 Q