Online PHP editor | refs for 1okcm

<?php $arr1 = [ ["name"=>"col11", "type"=>"varchar"], ["name"=>"col2", "type"=>"int"] ]; $arr2 = [ ["name"=>"col1", "type"=>"varchar"], ["name"=>"col2", "type"=>"int"] , ["name"=>"col3", "type"=>"date"] ]; $arr3 = [ ["name"=>"col1", "type"=>"varchar"], ["name"=>"col3", "type"=>"int"] ]; $arrays = [$arr1, $arr2, $arr3]; $arrays_extended = []; foreach($arrays as $row => $innerArray){ foreach($innerArray as $innerRow => $value){ array_push($arrays_extended, $value); } } var_dump(array_unique($arrays_extended));