get_hidden_columns( string|WP_Screen $screen ): string[]

Compatibility

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

Parameters

$screenstring|WP_Screen

The screen you want the hidden columns for

Return value

string[]

Array of IDs of hidden columns.

Performance profile

How much work a call to get_hidden_columns() 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

Trivial

Touches nothing outside its own arguments.

Scaling

Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions

20–31

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 31.

Plugin surface

2 hooks

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

Called by

3

3 places in core call this, so the cost is paid more often than your own code shows.

What it touches

• hookthird-party callbacksapply_filters()called directly

Further down the call graph this can also reach query, option, cache, 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 · 4 distinct outcomes

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

Hooks and filters fired · 2

2 hooks fire while get_hidden_columns() runs, in this order:

1. 1
   apply_filters( default_hidden_columns )filterline 71 (+20 into the body)

   Filters the default list of hidden columns.

2. 2
   apply_filters( hidden_columns )filterline 84 (+33 into the body)

   Filters the list of hidden columns.

Uses · 3

• convert_to_screen()Converts a screen string to a screen object.
• get_user_option()Retrieves user option that can be either per Site or per Network.
• apply_filters()Calls the callback functions that have been added to a filter hook.

Used by · 3

• WP_List_Table::get_column_info()Gets a list of all, hidden, and sortable columns, with filter applied.
• WP_Screen::render_list_table_columns_preferences()Renders the list table columns preferences.
• _WP_List_Table_Compat::get_column_info()Gets a list of all, hidden, and sortable columns.

Source code

View on Trac ↗View on GitHub ↗

51function get_hidden_columns( $screen ) {52	if ( is_string( $screen ) ) {53		$screen = convert_to_screen( $screen );54	}55 56	$hidden = get_user_option( 'manage' . $screen->id . 'columnshidden' );57 58	$use_defaults = ! is_array( $hidden );59 60	if ( $use_defaults ) {61		$hidden = array();62 63		/**64		 * Filters the default list of hidden columns.65		 *66		 * @since 4.4.067		 *68		 * @param string[]  $hidden Array of IDs of columns hidden by default.69		 * @param WP_Screen $screen WP_Screen object of the current screen.70		 */71		$hidden = apply_filters( 'default_hidden_columns', $hidden, $screen );72	}73 74	/**75	 * Filters the list of hidden columns.76	 *77	 * @since 4.4.078	 * @since 4.4.1 Added the `use_defaults` parameter.79	 *80	 * @param string[]  $hidden       Array of IDs of hidden columns.81	 * @param WP_Screen $screen       WP_Screen object of the current screen.82	 * @param bool      $use_defaults Whether to show the default columns.83	 */84	return apply_filters( 'hidden_columns', $hidden, $screen, $use_defaults );85}

Changelog

Introduced in 2.7.0. 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 6.9.7 tag, from src/wp-admin/includes/screen.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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