WP_Theme_JSON_Schema::migrate_v2_to_v3( array $old, string $origin ): array
- Since
- 6.6.0
- Source
wp-includes/class-wp-theme-json-schema.php:109
Description
- Sets settings.typography.defaultFontSizes to false if settings.typography.fontSizes are defined.
- Sets settings.spacing.defaultSpacingSizes to false if settings.spacing.spacingSizes are defined.
- Prevents settings.spacing.spacingSizes from merging with settings.spacing.spacingScale by unsetting spacingScale when spacingSizes are defined.
Compatibility
- WordPress
- since 6.6.0
- 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
$oldarray- Data to migrate.
$originstring- What source of data this object represents.
One of 'blocks', 'default', 'theme', or 'custom'.
Return value
array- Data with defaultFontSizes set to false.
Performance profile
How much work a call to WP_Theme_JSON_Schema::migrate_v2_to_v3() 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
- 8–35
- Plugin surface
- None
- Called by
- 1
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 36.
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 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_Theme_JSON_Schema::migrate_v2_to_v3() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 8–35 | none |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 36 instructions, 8–35 executed per call, 5 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.
Used by · 1
- WP_Theme_JSON_Schema::migrate()Function that migrates a given theme.json structure to the last version.
Source code
private static function migrate_v2_to_v3( $old, $origin ) { // Copy everything. $new = $old; // Set the new version. $new['version'] = 3; /* * Remaining changes do not need to be applied to the custom origin, * as they should take on the value of the theme origin. */ if ( 'custom' === $origin ) { return $new; } /* * Even though defaultFontSizes and defaultSpacingSizes are new * settings, we need to migrate them as they each control * PRESETS_METADATA prevent_override values which were previously * hardcoded to false. This only needs to happen when the theme provides * fontSizes or spacingSizes as they could match the default ones and * affect the generated CSS. */ if ( isset( $old['settings']['typography']['fontSizes'] ) ) { $new['settings']['typography']['defaultFontSizes'] = false; } /* * Similarly to defaultFontSizes, we need to migrate defaultSpacingSizes * as it controls the PRESETS_METADATA prevent_override which was * previously hardcoded to false. This only needs to happen when the * theme provided spacing sizes via spacingSizes or spacingScale. */ if ( isset( $old['settings']['spacing']['spacingSizes'] ) || isset( $old['settings']['spacing']['spacingScale'] ) ) { $new['settings']['spacing']['defaultSpacingSizes'] = false; } /* * In v3 spacingSizes is merged with the generated spacingScale sizes * instead of completely replacing them. The v3 behavior is what was * documented for the v2 schema, but the code never actually did work * that way. Instead of surprising users with a behavior change two * years after the fact at the same time as a v3 update is introduced, * we'll continue using the "bugged" behavior for v2 themes. And treat * the "bug fix" as a breaking change for v3. */ if ( isset( $old['settings']['spacing']['spacingSizes'] ) ) { unset( $new['settings']['spacing']['spacingScale'] ); } return $new; }Changelog
Introduced in 6.6.0. 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 7.1.0 tag, from
src/wp-includes/class-wp-theme-json-schema.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.