Why Are My AngularJS POST Variables Undefined in My PHP Script?
Nov 30, 2024 pm 12:43 PM
HTTP POST Sent from AngularJS Yields Undefined POST Variables in PHP
In our setup, an AngularJS application sends an HTTP POST request to a PHP script, but the PHP script receives undefined values for the 'email' and 'password' POST parameters.
Debugging the Cause
The issue lies in the mismatch between the Content-Type header sent by AngularJS and the data format expected by PHP. AngularJS uses application/json as the default Content-Type header, but the PHP script expects form-encoded data.
Solution 1: Use Application/JSON in PHP
One solution is to change the Content-Type header in AngularJS to application/json and use PHP's file_get_contents("php://input") to retrieve the raw request body. The data can then be deserialized from JSON.
$postdata = file_get_contents("php://input");
$request = json_decode($postdata);
$email = $request->email;
$pass = $request->password;
Solution 2: Send Form-Encoded Data
Alternatively, AngularJS can be configured to send form-encoded data. This involves building a query string manually or using jQuery.serialize(). The query string should then be URL encoded and set as the request data.
$email = $_POST['email']; $pass = $_POST['password'];
Deprecated Methods
Note that .success() and .error() methods mentioned in the code are deprecated. Use .then() instead.
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