<?php $priceTableData = array( array('productId'=>1,'price'=>50,'discount'=>12), array('productId'=>2,'price'=>22,'discount'=>2), array('productId'=>3,'price'=>7,'discount'=>0), array('productId'=>4,'price'=>9,'discount'=>0), array('productId'=>5,'price'=>35,'discount'=>7), ); $discounts= array_column($priceTableData , 'discount', 'productId'); print_r($discounts);
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