[Resolved] Question about using a hook for PHP

[Andy]

Hi there,

I’d like to disable mobile zoom. Why? Because I noticed that when I click on a form field or drop-down in mobile view, my phone zooms in.

I saw in another post, Tom recommended this code (I’m assuming this is the right fix):

add_filter( 'generate_meta_viewport', 'tu_disable_mobile_zoom' );
function tu_disable_mobile_zoom() {
    return '<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">';
}

I installed Elements, and I watched the video about adding hooks. My only question is, where should I add this PHP code? What part of the theme? What hook? Because I tried the wp_head and footer hooks and it broke my landing page.

I’m trying to refrain from using a child theme. I know functions.php will work. I thought maybe, a hook would be more efficient? If it isn’t, please let me know.

Thank you,
Andy

[David]

Hi there,

unfortunately you cannot add a filter (hook) inside one of the GP Hook Elements – as all of them are executed on the front end. So it has to go in a child theme, code snippets plugin or your own plugin.

[Andy]

Thanks David, just one more clarification please:

1. Is a child theme the most light weight option out of those 3 options?

2. If the answer is yes, can I just download this child theme here?
https://docs.generatepress.com/article/using-child-theme/

3. In layman terms, what does this mean? An example would help please. “If the child theme’s style.css file is empty and you’d like to avoid loading it, try this PHP snippet below”

add_action( 'wp_enqueue_scripts', function() {
    wp_dequeue_style( 'generate-child' );
}, 50 );

4. Do I need to make any additional adjustments to this child theme? Or is it good to go “out of the box”? In the past, I’ve installed other child themes and I didn’t do anything else. I’m wondering if I need to do anything fancy with GP’s child theme.

Thanks so much,
Andy

[Tom]

Hi there,

1. I don’t think there is a more lightweight version. If you already have a child theme, then use it – if not, the other methods are just as good.

2. Yes, that child theme will work. However, it loads a style.css for the child theme, so if you don’t need the custom CSS, I wouldn’t use a child theme.

3. This handles what I mentioned above. GP will load the child theme stylesheet by default, if it’s empty, it’s best to remove it.

4. You may need to re-add your site logo/copyright, as those options are theme-specific.

[Andy]

Thank you!

[Tom]

No problem 🙂

[Author]

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