No, you didn't...you posted the line of code that originally gave an error, and followed up with:

"I tried but have some fatal error, the code i tried having issue. I am not a tech savvy person. I am just a beginner so i tried with the advices given here."

You get "some fatal error", don't tell or show us what you did/tried, or how...and still expect us to be able to do something.

Bro i responded after i tried with the code provider by Nevemteve. So by using that code i faced this kind of error. Take it easy why did you get tensed to this? When i did not sort out this issue, I came to this support. It is not a big deal. Thanks.

No one is 'tensed' besides you. All you posted after what nevemteve gave you was "encountering fatal error, let me check". Doesn't tell anyone much, does it???

You seem to do this in most of your threads, where you don't follow up, claim to not know things (despite being told), and won't try what you're given. Again; you were given a clear list of things to try, and were told what the error was. Not much else we can do to help you, if you won't do anything on your own.

I wasn't stressed. I attempted to use the provided code, but I encountered a fatal error. Afterward, I removed the code. It's not a big deal; let's just leave it. If I have trouble understanding you, I'll let you know. Thanks.

P.S.: I didn't note the fatal error because I ran into another issue. So, I'm currently working without implementing lazy load. Just for your information, I'm using a plugin with lazy load function, but I'm not satisfied with it, so I reached out to the community to implement it through coding.

So again:

• You don't post the actual error you get.
• You got at least three different solutions with file names and documentation, but don't say what (if anything) you actually tried or how.

Since it's PHP, it is 'through coding'...which is why you were given the names of functions to try, with documentation/examples. Not much else anyone can help you with, since you don't appear to be doing anything with what you've got.

Already answered to your question here in the above answer. Thank you.

It's definitely okay to ask WordPress questions here. It looks like you're trying to implement a lazy-load function for images but encountering an error. The error message suggests that WordPress can't find your function 'add_lazyload_to_images'.

Ensure that the function is defined before it's called. Also, try adding your function in a different hook like 'init'. Here’s an updated version of your code:
function add_lazyload_to_images($content) {
if (is_admin()) {
return $content;
}
$content = preg_replace('/<img([^>]*)src=["\']([^"\']*)["\']([^>]*)>/i', '<img$1src="$2" loading="lazy"$3>', $content);
return $content;
}
add_action('init', function() {
add_filter('the_content', 'add_lazyload_to_images');
});

This ensures the function is available when needed. Hope this helps!

Right...which is what the OP was told initially, and also given this advice:
Anything else from ChatGPT?

Thanks and i will implement and let you know. Sorry for delayed response.

That is the same advice you've been given since the first reply. Same things you've been pointed to for documentation, along with other suggestions as to where to put this function. Seem to ignore it all.