Question

假设现在我有一个字符串：

$detail = "1=>Apple, 2=>Cheesecake, 3=>Banana";

如何将字符串$detail转换或解析为关联数组，并变成这样：

$detail_arr['1'] = "Apple";
$detail_arr['2'] = "Cheesecake";
$detail_arr['3'] = "Banana";

OR

类似于下面的代码：

$detail_arr = array("1"=>"Apple", "2"=>"Cheesecake", "3"=>"Banana");

foreach($detail_arr as $x=> $x_name)
{
    echo "Price=" . $x . ", Name=" . $x_name;
}

，并显示：

Price = 1, Name = Apple, ...

Answer 1

使用explode()通过,分隔符转换为字符串并遍历结果

$arr = [];
foreach (explode(',', $detail) as $item){
    $parts = explode('=>', $item);
    $arr[trim($parts[0])] = $parts[1];
}

在demo中查看结果

您也可以使用preg_match_all()和array_combine()来完成这项工作。

preg_match_all("/(\d+)=>([^,]+)/", $detail, $matches);
$arr = array_combine($matches[1], $matches[2]);

如何从PHP中的字符串制作关联数组？

1 个答案: