从PHP到javascript的JSON

问题描述：

I received a array in json. How can I get values with bucle for in javascript?. If array json hasn't assign a variable name

I have a array in php which convert to json

 echo json_encode($error);

I get the json following:

values in json

["El nombre del usuario no puede estar vacio","La contrase\u00f1a debe tener un m\u00ednimo de
 7 caracteres"]

How can I get data in javascript my function ajax

      function submitForm()
        {
            var dataString = $("#userForm").serialize();
            console.log(dataString);
            $.ajax({
                type: "POST",
                url: "/altausers",
                data: dataString,
                success: function(text)
                {
                   if(text==='success')
                   {

                   }
                   else
                   {
                       $("#error").removeClass('hidden'); 
#get values json here



                   }
                }
            });

    }

我在json中收到了一个数组。如何在javascript中使用bucle获取值？。如果数组json没有分配变量名 p>

我在php中有一个转换为json的数组 p>

  echo json_encode（$ error）; 
  code>  pre> 
 
 我得到以下json： p> 
 
 
   p> 
 
 
 json中的值 p> 
 
 
  [“El nombre del usuario no puede estar vacio”，“  La contrase \ u00f1a debe tener un m \ u00ednimo de 
 7 caracteres“] 
  code>  pre> 
 
 如何在javascript中获取数据我的函数ajax  p> 
  
 
  function submitForm（）
 {
 var dataString = $（“＃userForm”）。serialize（）; 
 console.log（dataString）; 
 $ .ajax（{
 键入：“POST”，
 url：“/ altausers”，
 data：dataString，
 success：function（text）
 {
 if（text ==='success'）
  {
 
} 
其他
 {
 $（“＃error”）。removeClass（'hidden'）;  
＃在这里获取值json 
 
 
 
} 
} 
} 
}）; 
 
} 
  code>  pre> 
  div>

答

You would have to specify

dataType: 'json'

then, your data would be in a javascript array:

function submitForm()
    {
        var dataString = $("#userForm").serialize();
        console.log(dataString);
        $.ajax({
            type: "POST",
            url: "/altausers",
            data: dataString,
            dataType: 'json',
            success: function(text)
            {
               if(text.length > 0) {
               $.each(text,function(index,value) {
                    alert('Response: '+ value);
               }

            }
        });

}

However, you would have to make sure that php ALWAYS returns a json-encoded response... even if you do it manually like:

<?php echo "[success]"; ?>

In javascript, you would just test

if(text[0] == 'success') { //hurray!!
}

答

PHP has method known as json_encode and json_decode which can me used to handle json data in php, while the json data can be directly accessed in javascript so I think you should look into that

相关推荐