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CapellaAmersfoort
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October 5, 2022 at 12:38 pm
Hi,
7 months ago I had the possibility to print my ticket tickets. But unfortunately the function/snippet stops working. Can you please help?
https://eventespresso.com/topic/print-button-on-ticket-page/
https://gist.github.com/Pebblo/8b5eaeb9c16d89073d64e1b7c8f78e00
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CapellaAmersfoort
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October 5, 2022 at 12:43 pm
probably due to php upgrade?
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CapellaAmersfoort
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October 5, 2022 at 12:57 pm
via debugging I get the following
Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/user/scripts/code.php:14
Stack trace:
#0 {main}
thrown in /home/user/scripts/code.php on line 14
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Tony
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October 5, 2022 at 1:14 pm
Hi there,
probably due to php upgrade?
Which PHP version is your server running?
> Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/user/scripts/code.php:14
Your running code calling WP functions ( add_filter() ) from a script outside of WordPress? May I ask why you have a /scripts/ directory holding custom functions rather than a custom functions plugin?
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CapellaAmersfoort
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October 5, 2022 at 1:27 pm
This reply has been marked as private.
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Tony
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October 5, 2022 at 1:33 pm
Sorry, I don’t follow.
A random PHP debugger would not have access to the WP functions which explains why you are getting that error there, but how does that tie into your site?
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CapellaAmersfoort
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October 5, 2022 at 1:36 pm
This reply has been marked as private.
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Tony
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October 5, 2022 at 1:41 pm
That function I wrote… ‘hooks’ into EE using a ‘hook’:
https://www.smashingmagazine.com/2011/10/definitive-guide-wordpress-hooks/
Those are specific to WordPress, so the code has to run ‘within’ WordPress to use those functions. Testing them on a online debugger wont work because it doesn’t know what a hook is, or how it will run.
So that explains the above error and for now, let’s put that aside.
What is happening on your message template when you use the shortcode for the print button?
As in, what do you mean when you say it isn’t working? What happens?
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CapellaAmersfoort
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October 5, 2022 at 1:49 pm
This reply has been marked as private.
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CapellaAmersfoort
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October 5, 2022 at 2:39 pm
[PRINT_BUTTON_* title='Print Tickets' text='Klik hier om uw tickets te printen'] is the row I add to my template
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Tony
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October 6, 2022 at 4:33 am
But the last row is the link to print the tickets, but the link is not working
That I can work with 🙂
So, this is due to a change we made in version 4.10.32.p which adds additional sanitation throughout Event Espresso.
I’ve created a ticket for our developers to check into this and see if we can allow that custom function to work again within core.
If you are comfortable with PHP and FTP I can give you some details that will force the shortcode to work again for the time being?
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CapellaAmersfoort
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October 6, 2022 at 4:36 am
If you are comfortable with PHP and FTP I can give you some details that will force the shortcode to work again for the time being?
Yes, that will be fine! I can give it a try
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Tony
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October 6, 2022 at 4:41 am
Go to \wp-content\plugins\event-espresso-core-reg\core\libraries\messages\defaults\default\html_main_wrapper.template.php
Line 48, change:
<?php echo wp_kses($main_body, AllowedTags::getAllowedTags()); ?>
To be:
<?php echo $main_body; ?>
—
Note that generally, I don’t recommend editing plugin files at all but the above should get it working for your event, the above change will be lost the next time Event Espresso is updated on the site.
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CapellaAmersfoort
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October 6, 2022 at 4:52 am
Thank you so much! The description is clear to me. I will try this when I’m home.
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CapellaAmersfoort
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October 6, 2022 at 5:32 am
Thanks again. I solved the/my problem!
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CapellaAmersfoort
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October 6, 2022 at 5:37 am
I –> It (your solution) 😉
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Tony
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October 6, 2022 at 8:40 am
Awesome, I’m glad it worked for you 🙂
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