WP_List_Table::single_row_columns( object|array $item )
- Since
- 3.1.0
- Source
wp-admin/includes/class-wp-list-table.php:1761
Compatibility
- WordPress
- since 3.1.0
- PHP
- 7.4–8.6-dev
- 6.7.7
- 6.8.8
- 6.9.7
- 7.0.4
- 7.1.0
Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.
Parameters
$itemobject|array- The current item.
Performance profile
How much work a call to WP_List_Table::single_row_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
- Light
- Scaling
- Scales with input
- Instructions
- 11–12
- Plugin surface
- None
- Called by
- 1
Touches nothing outside its own arguments.
The body loops, so the work grows with what you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 110.
Nothing here hands control to plugin code.
1 place in core call this, so the cost is paid more often than your own code shows.
What it touches
- hookthird-party callbacks
apply_filters()one call below WP_List_Table::single_row_columns()
Further down the call graph this can also reach option, cache, serialize, query 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 · 1 distinct outcome
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_List_Table::single_row_columns() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 11–12 | ->get_column_info() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 110 | 11–12 | 7 | |
| 8.5 | 110 | 11–12 | 7 | |
| 8.4 | 110 | 11–12 | 7 | 3 fewer instructions than PHP 8.3 |
| 8.3 | 113 | 11–12 | 7 | |
| 8.2 | 113 | 11–12 | 7 | 4 fewer instructions than PHP 8.1 |
| 8.1 | 117 | 15–16 | 7 | |
| 7.4 | 117 | 15–16 | 7 |
An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.
Uses · 6
- esc_attr()Escaping for HTML attributes.
- wp_strip_all_tags()Properly strips all HTML tags including 'script' and 'style'.
- WP_List_Table::get_column_info()Gets a list of all, hidden, and sortable columns, with filter applied.
- WP_List_Table::column_cb()
- WP_List_Table::handle_row_actions()Generates and display row actions links for the list table.
- WP_List_Table::column_default()
Used by · 1
- WP_List_Table::single_row()Generates content for a single row of the table.
Source code
protected function single_row_columns( $item ) { list( $columns, $hidden, $sortable, $primary ) = $this->get_column_info(); foreach ( $columns as $column_name => $column_display_name ) { $classes = "$column_name column-$column_name"; if ( $primary === $column_name ) { $classes .= ' has-row-actions column-primary'; } if ( in_array( $column_name, $hidden, true ) ) { $classes .= ' hidden'; } /* * Comments column uses HTML in the display name with screen reader text. * Strip tags to get closer to a user-friendly string. */ $data = 'data-colname="' . esc_attr( wp_strip_all_tags( $column_display_name ) ) . '"'; $attributes = "class='$classes' $data"; if ( 'cb' === $column_name ) { echo '<th scope="row" class="check-column">'; echo $this->column_cb( $item ); echo '</th>'; } elseif ( method_exists( $this, '_column_' . $column_name ) ) { echo call_user_func( array( $this, '_column_' . $column_name ), $item, $classes, $data, $primary ); } elseif ( method_exists( $this, 'column_' . $column_name ) ) { echo "<td $attributes>"; echo call_user_func( array( $this, 'column_' . $column_name ), $item ); echo $this->handle_row_actions( $item, $column_name, $primary ); echo '</td>'; } else { echo "<td $attributes>"; echo $this->column_default( $item, $column_name ); echo $this->handle_row_actions( $item, $column_name, $primary ); echo '</td>'; } } }Changelog
Introduced in 3.1.0. Unchanged from 6.7.7 through 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/class-wp-list-table.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it. - Corrections
- Something wrong on this page? Report it and it gets fixed in the next regeneration.