WP_Media_List_Table::column_default( WP_Post $item, string $column_name )

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$itemWP_Post

The current WP_Post object.

$column_namestring

Current column name.

Performance profile

How much work a call to WP_Media_List_Table::column_default() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Heavy

Reaches the database via get_post().

Scaling

Scales with input

The body loops, so the work grows with what you pass in.

Instructions

16–30

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 87.

Plugin surface

1 hook

Third-party callbacks on 'manage_media_custom_column' run inside this call, and their cost is not bounded by anything here.

Called by

0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

• hookthird-party callbacksdo_action()called directly
• querycontent queryget_post()one call below WP_Media_List_Table::column_default()
• cacheobject cachewp_cache_add()one call below WP_Media_List_Table::column_default()

Further down the call graph this can also reach option, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 3 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Media_List_Table::column_default() can have, taken from its control-flow graph on PHP 8.5.

Hooks and filters fired · 1

One hook fires while WP_Media_List_Table::column_default() runs, in this order:

1. 1
   do_action( manage_media_custom_column )actionline 707 (+50 into the body)

   Fires for each custom column in the Media list table.

Uses · 9

• str_starts_with()Polyfill for `str_starts_with()` function added in PHP 8.0.
• get_the_terms()Retrieves the terms of the taxonomy that are attached to the post.
• esc_url()Checks and cleans a URL.
• add_query_arg()Retrieves a modified URL query string.
• esc_html()Escaping for HTML blocks.
• sanitize_term_field()Sanitizes the field value in the term based on the context.
• wp_get_list_item_separator()Retrieves the list item separator based on the locale.
• get_taxonomy()Retrieves the taxonomy object of $taxonomy.
• do_action()Calls the callback functions that have been added to an action hook.

Source code

View on Trac ↗View on GitHub ↗

657	public function column_default( $item, $column_name ) {658		// Restores the more descriptive, specific name for use within this method.659		$post = $item;660 661		if ( 'categories' === $column_name ) {662			$taxonomy = 'category';663		} elseif ( 'tags' === $column_name ) {664			$taxonomy = 'post_tag';665		} elseif ( str_starts_with( $column_name, 'taxonomy-' ) ) {666			$taxonomy = substr( $column_name, 9 );667		} else {668			$taxonomy = false;669		}670 671		if ( $taxonomy ) {672			$terms = get_the_terms( $post->ID, $taxonomy );673 674			if ( is_array( $terms ) ) {675				$output = array();676 677				foreach ( $terms as $t ) {678					$posts_in_term_qv             = array();679					$posts_in_term_qv['taxonomy'] = $taxonomy;680					$posts_in_term_qv['term']     = $t->slug;681 682					$output[] = sprintf(683						'<a href="%s">%s</a>',684						esc_url( add_query_arg( $posts_in_term_qv, 'upload.php' ) ),685						esc_html( sanitize_term_field( 'name', $t->name, $t->term_id, $taxonomy, 'display' ) )686					);687				}688 689				echo implode( wp_get_list_item_separator(), $output );690			} else {691				echo '<span aria-hidden="true">&#8212;</span><span class="screen-reader-text">' . get_taxonomy( $taxonomy )->labels->no_terms . '</span>';692			}693 694			return;695		}696 697		/**698		 * Fires for each custom column in the Media list table.699		 *700		 * Custom columns are registered using the {@see 'manage_media_columns'} filter.701		 *702		 * @since 2.5.0703		 *704		 * @param string $column_name Name of the custom column.705		 * @param int    $post_id     Attachment ID.706		 */707		do_action( 'manage_media_custom_column', $column_name, $post->ID );708	}

Changelog

Introduced in 4.3.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 6.7.7 tag, from src/wp-admin/includes/class-wp-media-list-table.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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