Running snippet on button click

fblanco
(@fblanco)

5 years, 3 months ago

Hello! I’m fairly new to the plugin and WordPress in general, so I apologize in advance if my questions are a bit silly.

I’m trying to create a button on my site; on a click, it should run a php snippet (without reloading the page, if possible, though I suspect I’ll need and AJAX for that).

So I’ve written the function in a snippet, but I don’t know how should I add it to the WordPress functions (You know, “add_action” and all that jazz. It’s still quite confusing to me)and then “link it” to the button.

Could I please get some enlightenment?

Thanks!

Viewing 2 replies - 1 through 2 (of 2 total)

Thread Starter fblanco
(@fblanco)

5 years, 3 months ago
Small update. I’va managed to add this to a snippet:
```
function testphprun(){
  if( isset($_GET['testphprun']) ) {
    set_time_limit(0);
    $user_id = get_current_user_id(); 
  	$user_info = get_userdata($user_id);
  	$mailadress = $user_info->user_email;
	$path = file_get_contents('./wp-content/emails/'.$mailadress.'.txt'); 
	$result = "";
	exec('py ./wp-content/script.py '.$mailadress.' '.basename($path).'', $result, $return_var);
	foreach ($result as $line) {
       echo $line;
  	}
  } 
}	

add_action('init', 'testphprun');
```
So now, whenever I click this button:
```
<form method="post" action="http://localhost/wordpress/pdfPython/?testphprun">
    <input type="submit" value="RunScript">
</form>
```
I get redirected to /localhost/wordpress/pdfPython/?testphprun and the php script runs. I’m sure it’s not the best solution, but it works.

Now I’d like to modify the snippet so that when the page loads, a certain file is downloaded. I tried adding the appropiate headers and a “readfile()” call to this same snippet (after the current code, of course) but that apparently prevents the script from running. It just downloads the file.
- This reply was modified 5 years, 3 months ago by fblanco.
Plugin Author Shea Bunge
(@bungeshea)

5 years ago

Hi @fblanco,

Is the file you’d like to download already present on the server? You should be able to manage it using the wp_redirect() function to redirect the current request to the file you want to download.

Viewing 2 replies - 1 through 2 (of 2 total)

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