Storing javascript in a metabox.io Custom Field textarea

Code Snippet Related Categories

Reason for needing the Code Snippet

For some client projects I needed to embed javascript code in a page (Post). I used a custom field textarea to insert the code when creating the Post. The problem was the default for text fields was to run them through a sanitizer.php to strip out any type of code that might be malicious. This is a good thing. But in this case it defeats the purpose.

So how to disable the sanitizing for just this field without breaking the default?

 

(This post was viewed 434 times) in the last month.)

What the Code Snippet does

This is how to disable the sanitize.php functionality on a custom text field created with Metabox.io Custom Fields without editing the sanitize.php file in the metabox plugin, or for that matter writing any code at all.

Here's the Code Snippet

It turns out to be so simple, there's an Advanced tab on the settings for the custom textarea field where you can add an Attribute. The "sanitize_callback" with the value "none" is one such Attribute. So that's really all you have to do.

No longer do I need to edit the sanitizer.php file and comment out the textarea field on line 89 everytime the metabox plugin gets updated!


I used to have to comment out line #89 in the plugin sanitizer.php file every time the Metabox plugin got updated :-(


Below is a short video from Anh Tran the metabox.io developer made showing how to set the textarea custom field attribute "sanitize_callback" to "none"

20 March, 2020 - Loom Recording — Watch Video

Limit search for phrases by using " " around the phrase

Subscribe to Code Snippet updates

You will get an email the morning after we post a new Code Snippet

Something went wrong. Please check your entries and try again.

Other Recent Code Snippets

Bulk remove posts from category 1

Bulk remove posts from category

Posted in ,

After creating a child category I wanted to remove the parent category from 30 posts. I finally searched for “how to remove a post category in bulk edit in wordpress” and and lo and behold the second result led me to this plugin. It works perfectly. I’m only sorry I […]

Read More
wizard of oz lions, tigers, and bears

Privacy, Cookies, & ADA Compliance — Oh My!
— Privacy Pt. 1

Posted in , , , ,

With more and more privacy laws on the horizon, we advise all of our clients to not only have a Privacy Policy in place but also have a strategy to keep it up to date with newly required disclosures. An up to date Privacy Policy can help you avoid significant […]

Read More
Elementor vs Beaver Builder review

Elementor vs Beaver Builder review

Posted in , , ,

I came across an Elementor vs Beaver Builder comparison review that was published in August 2020. While I am pretty biased in favor of the Beaver Builder platform the reviewer seemed to favor Elementor. If you are trying to decide which page builder platform to use I’d encourage you take […]

Read More
Mix and Match your RSS feeds 2

Mix and Match your RSS feeds

Posted in , , ,

Ever want to provide your readers with email updates to your website? WordPress’ built in RSS feed functionality provides an easy way to provide the content to email newsletter services like Mailchimp or Mailerlite. But what if you want to create email updates that don’t include all your new posts, […]

Read More
Online GIF tools for regular and animated GIF images 6

Online GIF tools for regular and animated GIF images

Posted in , ,

I made an animated gif screenshot recording to demonstrate a code snippet, but I wanted to resize the image and make it loop. I found a useful website that has easy tools to do that. I reduced the size by 50% and made it auto-loop 30x. Then optimized it to […]

Read More
When should I NOT use WordPress for a website 9

When should I NOT use WordPress for a website

Posted in , , , ,

click the green switch at the top of the screenshots to compare the WordPress vs the Static HTML versions of the same website the static version is live at: http://halcyonlearning.com/

Read More

Pieter Hartsook

WordPress website coaching, design, implementation, support, and training. Background in Marketing Research and Communications. See my profile at: https://www.linkedin.com/in/hartsook/

Reader Interactions

Leave a Reply

Your email address will not be published. Required fields are marked *

Skip to content