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Display Hook Function on viewinvoice.tpl

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I have create hook on quotepdf.tpl

this is the code :


function landingflash_invoice_hook($vars) {

return array(
'pagetitle' => $vars['pagetitle'] . '<br><div style="font-size:12px;">'
landingflash_generate_code( $vars['invoiceid']).'</div>',
add_hook(ClientAreaPageViewInvoice", 1, "landinfglash_invoice_hook");

function landingflash_generate_code($invoice){

$secret_key = 'lfgapura';
$secret_iv = '123456';

$encrypt_method = 'AES-256-CBC';
$key = hash('sha256', '$secret_key');
$iv = substr( hash('sha256' , $secret_iv), 8, 16);

return base64_encode( openssl_encrypt($invoice, $encrypt_method, $key, 0, $iv));

And then i want to display it under invoice ID on viewInvoice.tpl  and it should displayed like this : http://prntscr.com/138455n

Do you know how to display the function result?

Thank you

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On 21/05/2021 at 15:36, Waranugraha said:

Do you know how to display the function result?

you have three issues...

  1. you mention quotepdf.tpl, but I assume you're really talking about invoicepdf.tpl, e.g invoices and not quotes.
  2. you cannot use hooks with either of the pdf templates - you would need to edit the relevant template directly.
  3. if you wanted the hook to work on the HTML invoice, then the following should work...
    add_hook('ClientAreaPageViewInvoice', 1, function($vars) {
    	$secret_key = 'lfgapura';
    	$secret_iv = '123456';
    	$encrypt_method = 'AES-256-CBC';
    	$key = hash('sha256', $secret_key);
    	$iv = substr( hash('sha256' , $secret_iv), 8, 16);
    	$hash = base64_encode(openssl_encrypt($invoice, $encrypt_method, $key, 0, $iv));
    	$pagetitle = $vars['pagetitle'] . '<br><div style="font-size:12px;">'. $hash . '</div>';
    	return array("pagetitle" => $pagetitle);

    ... but to repeat, no hook would work on the PDF invoices, but you can use PHP when editing those templates.

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