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$inventory = array(
array("fruit"=>"orange", "price"=>3),
array("fruit"=>"kiwi", "price"=>2),
array("fruit"=>"apple", "price"=>3),
array("fruit"=>"apple", "price"=>3),
array("fruit"=>"apple", "price"=>3),
array("fruit"=>"orange", "price"=>3),
array("fruit"=>"banana", "price"=>10),
array("fruit"=>"banana", "price"=>10),
);
//我希望做的是循环遍历这个数组,并添加所有的“价格”的每个 //唯一键“果”,然后再把它们排序多维数组之和排序
//前我希望实现的输出将是一个数组,例如:
$sum_array = array("banana"=>"20", "apple"=>"9", "orange"=>"6", "kiwi"=>"2");
杰克,感谢 “解析错误:语法错误,意想不到T_FUNCTION” \t $库存=阵列( 阵列( “水果”=> “橙”, “价格”=> 3), 阵列(“fruit”=>“kiwi”,“price”=> 2), array(“fruit”=>“apple”,“price”=> 3), array(“fruit”=>“apple” “price”=> 3), array(“fruit”=>“apple”,“price”=> 3), array(“fruit”=>“orange”,“price”=> 3), array (“水果”=>“香蕉”,“价格”=> 10), 数组(“水果”=>“香蕉”,“价格”=> 10), ); $分组= array_reduce($库存,功能($结果,$项目){ \t @ $结果[$项[ '水果']] + = $项[ '价格']; \t返回$结果; },array()); – CanadaPHP 2013-05-07 02:19:26
@CanadaPHP更新了使用旧版本php的答案。 – 2013-05-07 02:25:30
@CanadaPHP你是什么意思*没有*你重写?重写什么? – 2013-05-07 02:26:50