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我有两个关联数组。我需要减去($价格 - $含税),以获得$总价:php减去关联数组
$price['lunch'] = array("food" => 10, "beer"=> 6, "wine" => 9);
$price['dinner'] = array("food" => 15, "beer"=> 10, "wine" => 10);
$tax['lunch'] = array("food" => 2, "beer"=> 3, "wine" => 2);
$tax['dinner'] = array("food" => 4, "beer"=> 6, "wine" => 4);
期望的结果数组:
$result['lunch'] = (['food'] => 8, ['beer'] =>3, ['wine'] => 7)
$result['dinner'] = (['food'] => 11, ['beer'] =>4, ['wine'] => 6 )
我想下面的功能和array_map无济于事:
function minus($a, $b) {
return $a - $b;
}
foreach ($price as $value)
{
$big = $value;
foreach($tax as $v) {
$small = $v;
$e[] = array_map("minus",$big, $small);
}
}
上面我得到了四个数组(第一个也是最后一个是正确的),所以它是不正确的。感谢您的任何信息!
哈哈,你比我快:D我投你一票。 – ariefbayu
第二个foreach中的$用餐是一个字符串不是数组 - 我得到错误 - 仍然我不知道这应该如何工作。 – phpJs
对不起,我的错误 –