What potential issue could cause a non-responsive "submit button" in a PHP form?

One potential issue that could cause a non-responsive "submit button" in a PHP form is if the button's name attribute is not set correctly. The name attribute is used to identify the form data that should be sent when the form is submitted. If the name attribute is missing or incorrect, the PHP script may not be able to access the form data when the submit button is clicked. To solve this issue, make sure that the name attribute of the submit button matches the name used in the PHP script to access the form data. 

<form method="post" action="process_form.php">
  <input type="text" name="username" placeholder="Username">
  <input type="password" name="password" placeholder="Password">
  <input type="submit" name="submit" value="Submit">
</form>
```

In the PHP script (process_form.php), make sure to check for the form data using the correct name attribute:

```php
if(isset($_POST['submit'])) {
  $username = $_POST['username'];
  $password = $_POST['password'];
  
  // Process the form data here
}

Keywords

PHP form submission button JavaScript server-side validation

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