Online PHP editor | refs for nafbq

<?php $array = [ 0 => [ "id" => 1, "name" => "Sammy", "phone" => "2348055643322", "email" => "sammy@abc.com" ], 1 => [ "id" => 2, "name" => "Saheed", "phone" => "", "email" => "saay@aol.com" ], 2 => [ "id" => 3, "name" => "Edwin", "phone" => "2348099993322", "email" => "eddy@gmail.com" ], 3 => [ "id" => 3, "name" => "Jonadab", "phone" => "2348066773322", "email" => "jonadab@gmail.com" ], 4 => [ "id" => 3, "name" => "Mercy", "phone" => "", "email" => "mercy@sysnet.com" ] ]; $start = microtime(true); $phone = array_filter(array_column($array, "phone")); $filtered = array_intersect_key($array, $phone); Echo "array_intersect_key: " . (microtime(true)-$start)*1000; $start = microtime(true); $column = 'phone'; //column to filter $result = array_filter($array, function($o) use($column) { return trim( $o[$column] ) !== '' && $o[$column] !== null; }); Echo "\n\narray_filter: " . (microtime(true)-$start)*1000; $start = microtime(true); foreach ($array as $index => $row) { if (strlen($row['phone'])) { // keep the original index $response [$index]= $row; } } Echo "\n\nforeach: " . (microtime(true)-$start)*1000; $start = microtime(true); $reulting_array = array_filter($array, function ($entry) { return !empty($entry['phone']); }); Echo "\n\narray_filter by SaAy: " . (microtime(true)-$start)*1000;