CODEWITHSUNDEEP
phpjqueryajax
Hector
Hector

Reputation: 668

php $_POST not working but $_GET is

I have and issue submitting my form. I've tried both with ajax and with a regular submit($.post(), $.get(), method="post", method="get").

When I use either get I can get the data fine with $_GET, but using either post doesn't populate the $_POST variable.

Any suggestions would be great. I need to get post working, because I don't like the idea of using get for things like passwords.

EDIT:

POST:

<form method="post" action="<?php htmlspecialchars($_SERVER["PHP_SELF"]); ?>"> <input type="text" name="some_input" value=""> <input type="submit" name="submit"> </form>

<?php 
if (isset($_POST["some_input"])) echo $_POST["some_input"];
?>

Or

GET:

<form method="get" action="<?php htmlspecialchars($_SERVER["PHP_SELF"]); ?>"> <input type="text" name="some_input" value=""> <input type="submit" name="submit"> </form>

<?php
if (isset($_GET["some_input"])) echo $_GET["some_input"];
?>

The first one doesn't show anything.

The second shows whatever I typed.

EDIT 2:

The following code work and populates my $_POST

<?php
print "CONTENT_TYPE: " . $_SERVER['CONTENT_TYPE'] . "<BR />";
$data = file_get_contents('php://input');
print "DATA: <pre>";
var_dump($data);
var_dump($_POST);
var_dump($_SERVER["PHP_SELF"]);
print "</pre>";
?>
<form method="post" action="<?php $_SERVER["PHP_SELF"]; ?>">

    <input type="text" name="name" value="ok" />
    <input type="submit" name="submit" value="submit" />

</form>

Result:

CONTENT_TYPE: application/x-www-form-urlencoded
DATA:
string(21) "name=ok&submit=submit"
array(2) {
  ["name"]=>
  string(2) "ok"
  ["submit"]=>
  string(6) "submit"
}
string(37) "/path/to/test-post.php"

The strange part is that action="<?php $_SERVER["PHP_SELF"]; ?>" or no action at all works just fine, but either action="test-post.php" or action="/path/to/test-post.php" doesn't.

Broken result:

CONTENT_TYPE: 
DATA:
string(0) ""
array(0) {
}
string(37) "/path/to/test-post.php"

Upvotes: 0

Views: 2674

Answers (4)

Hector
Hector

Reputation: 668

I'm still not too sure what was causing it in the first place, but I have discovered that if I am making a request with a relative path then I have to omit the file extension. e.g. action="test-post" instead of action="test-post.php".

File extensions seem to be fine for $_GET and $_REQUEST if I am sending it via get (method="get"), but not for $_POST or $_REQUEST if I am sending it via post (method="post").

EDIT

This was something to do with the .htaccess file. I don't know much about that file, so I don't know exactly which bit was causing this issue.

Upvotes: 2

Robert Voicu
Robert Voicu

Reputation: 74

Here is an example of submitting with POST threw AJAX :

HTML:

<form id="form" name="form">
<h3>Fill Your Information!</h3>
<div>
<label>Name :</label>
<input id="name" type="text">
<label>Email :</label>
<input id="email" type="text">
<label>Password :</label>
<input id="password" type="password">
<label>Contact No :</label>
<input id="contact" type="text">
<input id="submit" onclick="myFunction()" type="button" value="Submit">
</div>
</form>

Javascript :

jQuery(document).ready(function(){
    $('#form').submit(function(e){
      var emailVal = $('#email').val();
       e.preventDefault();
       $.ajax({
          type: "POST",
          url: "thePHPfile.php",
          data: 'data': emailVal ,         
          success: function(html) {
              alert(html);
          }
       });
    });
});

PHP :

 <?php
        if(isset($_POST['data']){
          echo $_POST['data'];
        }
    ?>

Upvotes: 0

Emmanuel Delay
Emmanuel Delay

Reputation: 3679

This is an example of how to make a form with post, and handle it. Notice you can leave the action blank (then it stays on the same URL).

<?php
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
  if (isset($_POST["some_input"])) {
    echo $_POST["some_input"];
  }
}
?>
<form method="post" action="">
  <input type="text" name="some_input" value="">
  <input type="submit" name="submit">
</form>

Upvotes: 0

Thoys
Thoys

Reputation: 65

You could try using $_REQUEST instead of $_POST see a simular issue:

PHP $_POST not working?

Upvotes: 0

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