Change Favicon via CustomField in Settings Page

This topic has 5 replies, 2 voices, and was last updated 2 years, 6 months ago by Tobias Haas.

Viewing 6 posts - 1 through 6 (of 6 total)

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Posts

June 7, 2022 at 4:18 AM #36345

Participant

Hello dear Metabox team,

I try to change the favicon via custom field... but I fail... I put together a code here, but I don't know if it works like that.

Can you help me please? what am I doing wrong?

<?php $favicon = rwmb_get_value( 'favicon', ['object_type' => 'setting'], 'site_option' ) ?>

<?php
add_action('wp_head', function(){
?>
<script type="text/javascript">
var link = document.querySelector("link[rel~='icon']");
if (!link) {
    link = document.createElement('link');
    link.rel = 'icon';
    document.getElementsByTagName('head')[0].appendChild(link);
}
link.href = '<?php echo  get_field( "$favicon" ); ?>';
</script>
<?php
});

June 7, 2022 at 12:48 PM #36349

Long Nguyen

Moderator

Hi Tobias,

You can echo the variable $favicon without using the function get_field(), I think it comes from ACF.

link.href = '<?php echo $favicon; ?>';

June 7, 2022 at 1:01 PM #36350

Tobias Haas

Participant

Hey Long, thanks
Yes, it is quite possible that this comes from ACF...

I changed it in my code but still get an error - I forgot to mention it in my first post.

Error Message:
Call to undefined function rwmb_get_value()

On line: 1

<?php $favicon = rwmb_get_value( 'favicon', ['object_type' => 'setting'], 'site_option' ) ?>

<?php
add_action('wp_head', function(){
?>
<script type="text/javascript">
var link = document.querySelector("link[rel~='icon']");
if (!link) {
    link = document.createElement('link');
    link.rel = 'icon';
    document.getElementsByTagName('head')[0].appendChild(link);
}
link.href = '<?php echo $favicon; ?>';
</script>
<?php
});

June 7, 2022 at 6:47 PM #36356

Tobias Haas

Participant

ok got it! Now it should work.
But somehow it doesn't get any data... Am I not targeting the field correctly?

<?php
add_action('wp_head', function(){
    $favicon = rwmb_get_value( 'favicon', ['object_type' => 'setting'], 'site_option' );
?>
<script type="text/javascript">
var link = document.querySelector("link[rel~='icon']");
if (!link) {
    link = document.createElement('link');
    link.rel = 'icon';
    document.getElementsByTagName('head')[0].appendChild(link);
}
link.href = '<?php echo $favicon; ?>';
</script>
<?php
});

Settings Page
custom field
custom field2

Thank you for support!

June 8, 2022 at 10:14 AM #36363

Long Nguyen

Moderator

Hi,

1. I do not see the option name of the settings page, please add the option name for the settings page Administration. Get more details here https://docs.metabox.io/extensions/mb-settings-page/#using-meta-box-builder

2. And please follow this documentation to know how to get the image URL https://docs.metabox.io/fields/single-image/#template-usage

$favicon = rwmb_get_value( 'favicon', ['object_type' => 'setting'], 'your_option_name' );
$favicon_url = $favicon['url'];

link.href = '<?php echo $favicon_url  ?>';

June 8, 2022 at 1:59 PM #36368

Tobias Haas

Participant

Thank you very much Long!
It finally works! You saved my day

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