<?php $data = [ [ 'name' => 'Electric Khodro', 'price' => 12912 ], [ 'name' => 'Iran Khodro', 'price' => 15218 ], [ 'name' => 'Iran arghaam', 'price' => 8853 ] , // ... ]; function getHighestPrice($data,$name){ $prices = array_column($data,$name); return $prices == [] ? NULL : max($prices); } $maxPrice = getHighestPrice($data,'price'); echo $maxPrice;
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