请求参数
    name=form1
    &settings={"en":{"name":"Form 1","classes":["leftAlign"],"heading":"h2","styles":{"fontFamily":"default","fontSize":"default","fontStyles":[1,0,0]}},"styles":{"color":"default","backgroundColor":"default"}}
    &fields[0].id=null&fields[0].name=password1&fields[0].type=Password&fields[0].settings={"en":{"label":"Password 1","value":"","description":"","styles":{"fontFamily":"default","fontSize":"default","fontStyles":[0,0,0]}},"_persistable":true,"required":true,"restriction":"no","styles":{"label":{"color":"default","backgroundColor":"default"},"value":{"color":"default","backgroundColor":"default"},"description":{"color":"777777","backgroundColor":"default"}}}&fields[0].sequence=0&fields[0].status=
........ 
我需要将其转换为数组输出。我使用了几种方法将查询字符串解析为数组。这是我得到的输出。但未显示数组“字段”值。还有其他方法可以得到吗?字段 [0]、字段 [1] 和字段 [2] 具有键和值但未显示。
Array
(
    [name] => form1
    [settings] => {"en":{"name":"Form 1","classes":["leftAlign"],"heading":"h2","styles":{"fontFamily":"default","fontSize":"default","fontStyles":[1,0,0]}},"styles":{"color":"default","backgroundColor":"default"}}
    [fields] => Array
        (
            [0] => 
            [1] => 
            [2] => 
        )
    [create] => Create
)