What are common issues faced when trying to read form data in PHP?

Common issues faced when trying to read form data in PHP include not properly setting the form method attribute to "post", not using the correct name attribute in the form fields, and not using the $_POST superglobal to access the form data in the PHP script. To solve these issues, ensure that the form method is set to "post", use the correct name attribute in the form fields, and access the form data using the $_POST superglobal in the PHP script. 

<form method="post">
    <input type="text" name="username">
    <input type="password" name="password">
    <button type="submit">Submit</button>
</form>

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $username = $_POST["username"];
    $password = $_POST["password"];
    
    // Process the form data
}
?>

Keywords

PHP form data $_POST $_GET data validation

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