php sort multidimensional array
function sortByAge($a, $b) { return $a['age'] > $b['age']; } $people=[ ["age"=>54,"first_name"=>"Bob","last_name"=>"Dillion"], ["age"=>22,"first_name"=>"Sarah","last_name"=>"Harvard"], ["age"=>31,"first_name"=>"Chuck","last_name"=>"Bartowski"] ]; usort($people, 'sortByAge'); //$people is now sorted by age (ascending)
sort multidimensional array in php
<?php function sortByPrice($a, $b){ return $a['price'] > $b['price']; } $items = [ ['label' => 'cake', 'name' => 'Cake', 'price' => 150], ['label' => 'pizza', 'name' => 'Pizza', 'price' => 250], ['label' => 'puff', 'name' => 'Veg Puff', 'price' => 20], ['label' => 'samosa', 'name' => 'Samosa', 'price' => 14] ]; //Sort by Price usort($items, 'sortByPrice'); //print_r($items); print "<br/> After Sort by Price printing: <br/>"; foreach($items as $item){ print $item['name']." ".$item['price']."<br/>"; } $newArray = array_column($items, 'price', 'name'); // find max, min, and toal sum of array $totalExp = array_sum(array_column($items, 'price', 'name')); $maxPrice = max(array_column($items, 'price', 'name')); $minPrice = min(array_column($items, 'price', 'name')); print "Total Expenses : ".$totalExp."<br/>"; print "What is Costly Item : ".$maxPrice.' ('.array_search($maxPrice, $newArray).")<br/>"; print "What is Cheap Item : ".$minPrice.' ('.array_search($minPrice, $newArray).")<br/>"; ?>
php sort multidimensional array by value
function sortByOrder($a, $b) { return $a['order'] - $b['order']; } usort($myArray, 'sortByOrder');
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