jquery post php undefined index

Question

This is my html with script

<div id="info" class="container-fluid">Here is some text</div>
<script src="js/jquery-2.1.4.js"></script>
<script src="js/bootstrap.js"></script>
<script type="text/javascript">
$.post("testPHP.php", {name: "John"}, function(data)
    {
        $( "#info" ).html( data )
    })
</script>

and the php code

<?php
   $name=$_POST['name']; 
   echo $name;
?>

In html I may see the name John displayed in the div with id info. But when I run the php file I get this error

Notice: Undefined index: name in C:\xampp\htdocs\ticketing\testPHP.php on line 2

How can I send a variable via Ajax to a php file and echo this?

Is this one file or two separate files? You should have 2 files and you don't need to run the php file, only call it using $.post(). — jeroen
– jeroen, Commented Dec 23, 2015 at 10:58
But.. You're already sending variables (name) with AJAX to a PHP file.. What are you trying to do? — Sven van Zoelen
– Sven van Zoelen, Commented Dec 23, 2015 at 11:05

Ronak Patel · Accepted Answer · 2015-12-23 11:37:35Z

2

Ajax in pass some extra data like type:"ajax" and file in check

<?php
if (isset($_POST['type']) && $_POST['type']=='ajax') {
    $name = $_POST['name'];
    echo $name;
} else {
echo "You access with direct URL";
} ?>

answered Dec 23, 2015 at 11:37

Ronak Patel

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Comments

Mirceac21 · Accepted Answer · 2015-12-23 11:36:40Z

0

Try to check if there is a post request in your testPHP.php

<?php
if (isset($_POST['name'])) {
    $name = $_POST['name'];
    echo $name;
} else {
    // do something else here
}

edited Dec 23, 2015 at 11:36

answered Dec 23, 2015 at 11:02

Mirceac21

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3 Comments

leas Over a year ago

I tired this and I get this error Notice: Undefined index: name in C:\xampp\htdocs\ticketing\testPHP.php on line 3 What I want to do is to have an <a> tag like this: <a href='testPHP.php'>view ticket</a> in the html file and when click to the link and redirect to testPHP.php , I want to echo the name variable.

Mirceac21 Over a year ago

I edited the answer, try again. If you get error please paste the error message.

leas Over a year ago

Now I get "You access with direct URL" in both html and php file. This is my html code: <div id="info" class="container-fluid">Here is some text</div> <a href='testPHP.php'>view ticket</a> The idea is that when click on the link and redirect to testPHP.php I want the variable name to be echoed I have modified the script like this: $('a').click(function() { $.post("testPHP.php", {name: "John"}, function(data) { $( "#info" ).html( data ) }) })

user7457440 · Accepted Answer · 2017-01-23 11:39:29Z

0

It won't send any data because there is no form in it. No object will be serialized(input, select, etc.).

answered Jan 23, 2017 at 11:39

user7457440

1

1 Comment

Maximilian Ast Over a year ago

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