globals - Read For Learn

$GLOBALS & global doesn’t work [closed]

In my opinion you shouldn’t use $GLOBALS at all. add_filter shouldn’t be used the way you are using it. So there is apply_filter in wordpress that returns a filtered value such that $my_variable = apply_filter(‘my_filter_tag’, ‘default_value’, $arg1); In the above code ‘default_value’ can be anything. $my_variable will hold the value ‘default_value’ if no one called … Read more

How do I access variables outside a function [closed]

You could return the data and set a local variable: function get_album_info() { $album = array( ‘art’ => wp_get_attachment_image_src( get_sub_field(‘album_art’), ‘full’ ), ‘date’ => get_field(‘album_date’) ); return $album; } $album = get_album_info(); echo $album[‘art’]; echo $album[‘date’];

key( $GLOBALS[‘wp_registered_sidebars’] ) is always showing the same value

$GLOBALS[‘wp_registered_sidebars’] is a multidimensional array (an array of arrays) so you have to loop over this array and execute the key() function for each member Now I think I know what is what you want to get. If you want to get the id of the widget’s parent sidebar, the widget area where the widget … Read more

WordPress $GLOBALS and PHP $GLOBALS

Save something to global var in add_filter

I ran a test and the following works: global $testMe; $testMe = 0; function my_acf_update_value( $value, $post_id, $field ) { global $testMe; $testMe = $value; return $value; } add_filter(‘acf/update_value/key=field_5308e5e79784b’, ‘my_acf_update_value’, 10, 3); // Test: Apply the filter apply_filters(‘acf/update_value/key=field_5308e5e79784b’,’a’,’b’,’c’); // end Test echo $testMe; // prints ‘a’ So, in principle, your code is functional. There are … Read more

Current URL path variable

You could just get the permalink and strip the home root from it- $path = substr( get_permalink(), strlen( home_url(“https://wordpress.stackexchange.com/”) ) );

How to set global variable in functions.php

You can turn your snippet into a function that returns the post thumbnail URL of a post: function wpse81577_get_small_thumb_url( $post_id ) { $thumbSmall = wp_get_attachment_image_src( get_post_thumbnail_id( $post_id ), ‘small’ ); return $thumbSmall[‘0’]; } Usage, supplying the ID of a post: <?php echo wpse81577_get_small_thumb_url( 59 ); ?>