[英]Passing of JSON array to PHP file using javascript AJAX function
I am now about to give up for ajax in javascript to pass JSON array to PHP. 我现在要放弃将JSON数组传递给PHP的javascript中的ajax。 I have first PHP file in which I have form which contains a text area and checkboxes.
我有第一个PHP文件,其中有包含文本区域和复选框的表单。 The snippet is below:
该代码段如下:
<form name="drugForm" onsubmit="return validateForm()" method="post">
Drug name: <input type="text" name="dname"></pre>
<pre>
<input type="checkbox" name="drug" value="one">1 <input type="checkbox" name="drug" value="two">2</br>
<input type="checkbox" name="drug" value="three">3 <input type="checkbox" name="drug" value="four">4</br></br>
<input type="submit" value="Submit">
</pre>
Here, with validateForm() call I am calling javascript to check whether text area is filled and at least a checkbox is checked. 在这里,通过validateForm()调用,我正在调用javascript以检查文本区域是否已填充,并且至少选中了一个复选框。 Also, it is creating array, in javascript, to get checked values.
另外,它正在用javascript创建数组以获取检查值。 Here with this js I want to send this array to PHP file by converting it JSON using ajax.
在此使用此js,我想通过使用ajax将其转换为JSON将此数组发送到PHP文件。 COde snippet is below:
以下是COde代码段:
function validateForm()
{
var x=document.forms["drugForm"]["dname"].value;
var y=document.drugForm.drug;
var y_array = new Array();
if (x==null || x=="")
{
alert("First name must be filled out");
return false;
}
else if (Boolean(x))
{
for(k=0;k<y.length;k++)
{
if(y[k].checked)
{
var arr_val = y[k].value;
y_array.push(arr_val);
//alert(arr_val);
}
}
$.ajax({
type: "POST",
url: "drug_form3.php",
dataType: 'json',
data: {json: JSON.stringify(y_array)},
});
alert("Check one checkbox at least");
return false;
}
}
Here, with js array is getting created and whenever I am printing values with alert, it is giving proper result. 在这里,随着js数组的创建,每当我打印带有警报的值时,它就会给出正确的结果。 But, when I am trying to send it to next PHP file even after using json_decode in php file, it is not able to get array printed with PHP.
但是,即使在php文件中使用json_decode后,即使尝试将其发送到下一个PHP文件,也无法使用PHP打印数组。 Below is code snippet for second PHP:
以下是第二个PHP的代码片段:
<body>
<?php
$json = $_POST['json'];
$array=json_decode($_POST[$json]);
// here i would like use foreach:
print_r ($array);
echo "Its in form2 and working fine";
?>
</body>
Please guide me in this issue, how to pass json array to PHP file using javascript. 请在这个问题上指导我,如何使用javascript将json数组传递到PHP文件。
You have the following lines confused: 您对以下几行感到困惑:
$json = $_POST['json'];
$array=json_decode($_POST[$json]);
Change to: 改成:
$array=json_decode($_POST['json']);
Can you try this and check whether you getting the post values here, 您可以尝试一下并检查您是否在此处获得帖子值吗?
$json = $_POST['json'];
echo "<pre>"; print_r($json);echo "</pre>";
试试这个,看看是否适合您
$array = json_decode($_POST['json'], true);
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.