wp_install_language_form( array[] $languages )
- Since
- 4.0.0
- Source
wp-admin/includes/translation-install.php:203
Compatibility
- WordPress
- since 4.0.0
- 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
$languagesarray[]- Array of available languages (populated via the Translation API).
Performance profile
How much work a call to wp_install_language_form() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Light
- Scaling
- Scales with input
- Instructions
- 12–59
- Plugin surface
- None
- Called by
- 0
Touches nothing outside its own arguments.
The body loops, so the work grows with what you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 104.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- hookthird-party callbacks
apply_filters()one call below wp_install_language_form()
Further down the call graph this can also reach option, cache, serialize, query and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.
What one call costs · 2 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_install_language_form() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 12–17 | get_available_languages() |
!empty($wp_local_package) && isset($languages[$wp_local_package]) | 55–59 | get_available_languages(), esc_attr(), current(), esc_attr(), esc_attr(), esc_html(), printf() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 112 | 12–63 | 9 | 8 more instructions than PHP 8.5 |
| 8.5 | 104 | 12–59 | 9 | |
| 8.4 | 104 | 12–59 | 9 | 6 fewer instructions than PHP 8.3 |
| 8.3 | 110 | 12–62 | 9 | |
| 8.2 | 110 | 12–62 | 9 | |
| 8.1 | 110 | 12–62 | 9 | 2 fewer instructions than PHP 7.4 |
| 7.4 | 112 | 12–63 | 9 |
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 · 3
- get_available_languages()Gets all available languages based on the presence of *.mo and *.l10n.php files in a given directory.
- esc_attr()Escaping for HTML attributes.
- esc_html()Escaping for HTML blocks.
Source code
function wp_install_language_form( $languages ) { global $wp_local_package; $installed_languages = get_available_languages(); echo "<label class='screen-reader-text' for='language'>Select a default language</label>\n"; echo "<select size='14' name='language' id='language'>\n"; echo '<option value="" lang="en" selected="selected" data-continue="Continue" data-installed="1">English (United States)</option>'; echo "\n"; if ( ! empty( $wp_local_package ) && isset( $languages[ $wp_local_package ] ) ) { if ( isset( $languages[ $wp_local_package ] ) ) { $language = $languages[ $wp_local_package ]; printf( '<option value="%s" lang="%s" data-continue="%s"%s>%s</option>' . "\n", esc_attr( $language['language'] ), esc_attr( current( $language['iso'] ) ), esc_attr( $language['strings']['continue'] ? $language['strings']['continue'] : 'Continue' ), in_array( $language['language'], $installed_languages, true ) ? ' data-installed="1"' : '', esc_html( $language['native_name'] ) ); unset( $languages[ $wp_local_package ] ); } } foreach ( $languages as $language ) { printf( '<option value="%s" lang="%s" data-continue="%s"%s>%s</option>' . "\n", esc_attr( $language['language'] ), esc_attr( current( $language['iso'] ) ), esc_attr( $language['strings']['continue'] ? $language['strings']['continue'] : 'Continue' ), in_array( $language['language'], $installed_languages, true ) ? ' data-installed="1"' : '', esc_html( $language['native_name'] ) ); } echo "</select>\n"; echo '<p class="step"><span class="spinner"></span><input id="language-continue" type="submit" class="button button-primary button-large" value="Continue" /></p>';}Changelog
Introduced in 4.0.0. 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 7.0.4 tag, from
src/wp-admin/includes/translation-install.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.