How Can I Efficiently Handle AJAX Responses and Extract Specific Data Using jQuery and a Separate PHP Script?

AJAX Request Callback Using jQuery

In this scenario, where the goal is to process AJAX responses and extract specific data, it's recommended to consider a separate PHP script.

Reasoning:

• Separation of Concerns: Keeping the code responsible for handling the AJAX request and the code performing the desired calculations in separate files promotes maintainability and scalability.
• Efficient Response: The separate PHP script will only output the necessary data, reducing the size and complexity of the AJAX response. This can improve performance, especially in scenarios with large data sets.

Implementation:

1. Create a new PHP file, let's call it processNum.php.

2. In processNum.php:

   $num = $_POST['json']['number'];
   echo $num * 2;

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3. In your primary PHP file, convertNum.php:

   $.post("processNum.php", {"json": json}).done(function (data) {
       // Here, 'data' will only contain the multiplied number
       $('#numReturn').val(data);
   });

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This approach ensures that only the desired data is returned and processed, streamlining the communication between the client and server and enhancing the overall efficiency of your application.

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