If you just place it in functions.php, not in a function in functions.php, it will be called too early. WordPress includes functions.php before it parses the URL and determines whether you are actually on the homepage or not. Since WordPress 3.1 there is an extra warning (only visibile if you enable WP_DEBUG) if you call … Read more
Not sure how and where you can create a custom button, but you can add such a link per filter: Add a filter function to ‘wp_nav_menu_objects’ and insert the link where you need it. Here is a basic example: add_filter( ‘wp_nav_menu_objects’, ‘wpse_46547_add_log_out_link’, 10, 2 ); function wpse_46547_add_log_out_link( $sorted_menu_items, $args ) { $link = array ( … Read more
The recommended way is to call your function inside the .js file you are enqueuing. Is there any reason you can’t do that? If you need access to dynamic data like WP options from within your script, use wp_localize_script to initialize a javascript object with the data you need: $data = array(‘some_option’ => get_option(‘an_option_from_my_theme’)); wp_enqueue_script(‘your_script_handle’, … Read more
In WordPress v2.5+ the object cache is not persistent. It will save things in memory, but for persistent caching across page loads you will need a plugin see here: http://codex.wordpress.org/Class_Reference/WP_Object_Cache#Persistent_Caching Alternatively, use transients, which are persistent. The identifier must be 45 or less characters long, but the data attached to that identifier can be longer. … Read more
I thought I would provide you with another approach. It is also a bit hackish, but it is general purpose and allows you to simply register the filename and label that you want to use, like so: if ( class_exists( ‘WPSE_196995_Page_Templates’ ) ) { WPSE_196995_Page_Templates::register_page_template( ‘My Page Template’, ‘my-page-template.php’ ); } You could add the … Read more
WordPress 4.7 introduces a new filter that allows us to easily modify the template hierarchy: /** * Filters the list of template filenames that are searched for when retrieving * a template to use. * * The last element in the array should always be the fallback * template for this query type. * * … Read more
http://www.laptoptips.ca/projects/category-description-editor/ this works very good. about adding another field, I’v tried @MikeSchinkel solution here Adding Fields to the Category, Tag and Custom Taxonomy Edit Screen in the WordPress Admin? and it works very good also.
You don’t ever directly use (as in, select as a Page template) either front-page.php or home.php. WordPress uses these template files automatically, according to the Template Hierarchy rules. The front-page.php template file is used to display Site Front Page, whether you have set the site front page to display a static Page or the Blog … Read more
Here is something i cooked up which was taken mainly from the plugin Overwrite Uploads but without the extra stuff add_filter(‘wp_handle_upload_overrides’,’noneUniqueFilename’); function noneUniqueFilename($overrides){ $overrides[‘test_form’] = false; $overrides[‘unique_filename_callback’] = ‘nonUniqueFilenameCallback’; return $overrides; } function nonUniqueFilenameCallback($directory, $name, $extension){ $filename = $name . strtolower($extension); //remove old attachment removeOldAttach($filename); return $filename; } function removeOldAttach($filename){ $arguments = array( ‘numberposts’ => … Read more
A child theme may have declared these functions already with a slightly different inner logic. The functions.php from the child theme is loaded before the file from the parent theme. Without this check you would get the Cannot redeclare … error. Plugins can create functions too, so this problem is not restricted to the themes … Read more