3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = [ [ [ 'foo' => 'bar', 'foobar' => 'foo' ], [ 'foo' => 'bar', 'foobar' => 'foo' ], [ 'foo' => 'bar', 'foobar' => 'foo' ], [ 'foo' => 'foo', 'foobar' => 'bar' ], [ 'foo' => 'foo', 'foobar' => 'bar' ], [ 'foo' => 'foo', 'foobar' => 'bar' ] ] ]; $result = array_map(function($x) { return array_unique($x, SORT_REGULAR); }, $data); print_r($result);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
Array ( [0] => Array ( [0] => Array ( [foo] => bar [foobar] => foo ) [3] => Array ( [foo] => foo [foobar] => bar ) ) )
preferences:
63.01 ms | 409 KiB | 5 Q