Question

数组格式

Array
(
[76ea881ebe188f1a7e7451a9d7f17ada] => Array
    (
        [rowid] => 76ea881ebe188f1a7e7451a9d7f17ada
        [id] => 1
        [qty] => 2
        [price] => 20
        [name] => First
        [options] => Array
            (
                [permName] => beer
            )

        [subtotal] => 40
    )

[e7a36fadf2410205f0768da1b61156d9] => Array
    (
        [rowid] => e7a36fadf2410205f0768da1b61156d9
        [id] => 3
        [qty] => 6
        [price] => 20
        [name] => Second
        [options] => Array
            (
                [permName] => achieve
            )

        [subtotal] => 120
    )

我有没有办法在这个数组中搜索标题，或者在这种情况下我们说e7a36fadf2410205f0768da1b61156d9，一旦找到它，只返回price和qty值？

非常感谢任何帮助。

Answer 1

$title = 'e7a36fadf2410205f0768da1b61156d9';

if (isset($arr[$title])) {
    return array('price'=>$arr[$title]['price'], 'qty'=>$arr[$title]['qty']);
}

Answer 2

这个功能就足够了。

function search_title($title, $array){
    if(array_key_exists($array[$title])){
        return array($array[$title]['price'],$array[$title]['qty']);
    }else{
        return array( false, false);
    }
}

用法，

list ($price, $qty) = search_title('e7a36fadf2410205f0768da1b61156d9', $array);

if($price!==false){
    // search was successful
}

Answer 3

您可以使用array_key_exists函数来检查是否存在具有给定键的元素。

$title = 'e7a36fadf2410205f0768da1b61156d9';   
if (array_key_exists($title, $arr)) {
    return array('price'=>$arr[$title]['price'], 'qty'=>$arr[$title]['qty']);
}

使用嵌套数组搜索数组并返回

3 个答案: