twentyseventeen_content_width()
- Source
wp-content/themes/twentyseventeen/functions.php:259
Description
Priority 0 to make it available to lower priority callbacks.
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.
Performance profile
How much work a call to twentyseventeen_content_width() 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
- Scaling
- Constant
- Instructions
- 17–29
- Plugin surface
- 1 hook
- Called by
- 0
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 31.
Third-party callbacks on 'twentyseventeen_content_width' 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 · 6 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost twentyseventeen_content_width() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
$page_layout !== "one-column" && !is_single() | 17 | get_theme_mod(), is_single(), apply_filters() |
$page_layout !== "one-column" && is_single() | 21–22 | get_theme_mod(), is_single(), is_active_sidebar(), apply_filters() |
$page_layout === "one-column" && twentyseventeen_is_frontpage() && !is_single() | 22 | get_theme_mod(), twentyseventeen_is_frontpage(), is_single(), apply_filters() |
$page_layout === "one-column" && !twentyseventeen_is_frontpage() && !is_single() | 23–24 | get_theme_mod(), twentyseventeen_is_frontpage(), is_page(), is_single(), apply_filters() |
$page_layout === "one-column" && twentyseventeen_is_frontpage() && is_single() | 26–27 | get_theme_mod(), twentyseventeen_is_frontpage(), is_single(), is_active_sidebar(), apply_filters() |
$page_layout === "one-column" && !twentyseventeen_is_frontpage() && is_single() | 27–29 | get_theme_mod(), twentyseventeen_is_frontpage(), is_page(), is_single(), is_active_sidebar(), apply_filters() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 31 | 17–29 | 5 | |
| 8.5 | 31 | 17–29 | 5 | |
| 8.4 | 31 | 17–29 | 5 | |
| 8.3 | 31 | 17–29 | 5 | |
| 8.2 | 31 | 17–29 | 5 | |
| 8.1 | 31 | 17–29 | 5 | 2 fewer instructions than PHP 7.4 |
| 7.4 | 33 | 19–31 | 5 |
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_content_width() runs, in this order:
- apply_filters( twentyseventeen_content_width )filterline 287 (+28 into the body)
Filters Twenty Seventeen content width of the theme.
Uses · 6
- get_theme_mod()Retrieves theme modification value for the active theme.
- twentyseventeen_is_frontpage()Checks to see if we are on the front page or not.
- is_page()Determines whether the query is for an existing single page.
- is_single()Determines whether the query is for an existing single post.
- is_active_sidebar()Determines whether a sidebar contains widgets.
- apply_filters()Calls the callback functions that have been added to a filter hook.
Source code
function twentyseventeen_content_width() { $content_width = $GLOBALS['content_width']; // Get layout. $page_layout = get_theme_mod( 'page_layout' ); // Check if layout is one column. if ( 'one-column' === $page_layout ) { if ( twentyseventeen_is_frontpage() ) { $content_width = 644; } elseif ( is_page() ) { $content_width = 740; } } // Check if is single post and there is no sidebar. if ( is_single() && ! is_active_sidebar( 'sidebar-1' ) ) { $content_width = 740; } /** * Filters Twenty Seventeen content width of the theme. * * @since Twenty Seventeen 1.0 * * @param int $content_width Content width in pixels. */ $GLOBALS['content_width'] = apply_filters( 'twentyseventeen_content_width', $content_width );}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/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.