I want to disable the submit button after it is clicked to prevent multiple submissions. I have:

$form['show'] = [
'#type' => 'submit',
    '#value' => $textforsubmitbutton,
    '#name' => 'submit',
    '#attributes' => array("onclick" => "javascript: this.disabled = true;"

but this disabled the button completely. Using "onsubmit" in place of "onclick" doesn't change anything on the button. So maybe I need something like:

    '#attributes' => array("onclick" => "javascript: this.submit; this.disabled = true;"

How do i fix this?


For those wanting to disable the form submit button on load, try this:

$form['actions']['submit']['#attributes']['disabled']  = 'disabled';
  • Exactly what I was looking for, thanks. I was trying to use ['submit']['#disabled'] = TRUE;. – Elijah Lynn Apr 8 at 7:41

In your context, this refers to the submit input element which doesn't have the method submit(). You can use some jQuery to disabled the element on click then find the form element to submit.

'#attributes' => array("onclick" => "
      jQuery(this).attr('disabled', true);

I am using bootstrap - that's where i found the solution finally:

'#attributes' => array("onclick" => "

Works perfectly!

$form['actions']['submit']['#attributes']['disabled']  = 'disabled';

To remove the button in hook_form_alter() simply unset the submit action.


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