twentyseventeen_panel_count(): int
- Source
wp-content/themes/twentyseventeen/inc/template-functions.php:76
Description
Primarily used to see if we have any panels active.
Compatibility
- WordPress
- core
- 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.
Return value
int- The number of active panels.
Performance profile
How much work a call to twentyseventeen_panel_count() 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
- 12
- Plugin surface
- 1 hook
- Called by
- 0
Touches nothing outside its own arguments.
The body loops, so the work grows with how much data it finds.
Executed per call on PHP 8.5. The body compiles to 19.
Third-party callbacks on 'twentyseventeen_front_page_sections' run inside this call, and their cost is not bounded by anything here.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- hookthird-party callbacks
apply_filters()called directly
Further down the call graph this can also reach option, cache, serialize, transient and query. 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 twentyseventeen_panel_count() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!$i | 12 | apply_filters() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 19 instructions, 12 executed per call, 2 branches. The work does not change between versions.
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.
Hooks and filters fired · 1
One hook fires while twentyseventeen_panel_count() runs, in this order:
- apply_filters( twentyseventeen_front_page_sections )filterline 87 (+11 into the body)
Filters the number of front page sections in Twenty Seventeen.
Uses · 2
- apply_filters()Calls the callback functions that have been added to a filter hook.
- get_theme_mod()Retrieves theme modification value for the active theme.
Source code
function twentyseventeen_panel_count() { $panel_count = 0; /** * Filters the number of front page sections in Twenty Seventeen. * * @since Twenty Seventeen 1.0 * * @param int $num_sections Number of front page sections. */ $num_sections = apply_filters( 'twentyseventeen_front_page_sections', 4 ); // Create a setting and control for each of the sections available in the theme. for ( $i = 1; $i < ( 1 + $num_sections ); $i++ ) { if ( get_theme_mod( 'panel_' . $i ) ) { ++$panel_count; } } return $panel_count;}Changelog
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 7.1.0 tag, from
src/wp-content/themes/twentyseventeen/inc/template-functions.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.