What are some common mistakes when handling $_POST data in PHP?

Common mistakes when handling $_POST data include:

  • Not checking request method: Ensure the form is submitted via post method. Check this with $_SERVER["REQUEST_METHOD"] === "POST".
  • Forgetting to sanitize inputs: Always sanitize user inputs to prevent security issues. Functions like filter_var and htmlspecialchars are useful.
  • Not handling empty fields: Check for empty or missing fields using isset() or empty() functions to avoid errors.
  • Incorrect form encoding: For file uploads, ensure enctype="multipart/form-data" is set in the form tag.

03 Aug 2024   |    8

asked by ~ Megha

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