rest_are_values_equal( mixed $value1, mixed $value2 ): bool
- Since
- 5.7.0
- Source
wp-includes/rest-api.php:2105
Description
Property order is ignored for objects.
Values must have been previously sanitized/coerced to their native types.
Compatibility
- WordPress
- since 5.7.0
- 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
$value1mixed- The first value to check.
$value2mixed- The second value to check.
Return value
bool- True if the values are equal or false otherwise.
Performance profile
How much work a call to rest_are_values_equal() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Trivial
- Scaling
- Constant
- Instructions
- 6–13
- Plugin surface
- None
- Called by
- 2
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 45.
Nothing here hands control to plugin code.
2 places in core call this, so the cost is paid more often than your own code shows.
What one call costs · 2 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost rest_are_values_equal() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!$index | 6 | none |
$index | 13 | rest_are_values_equal() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 45 instructions, 6–13 executed per call, 8 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.
Uses · 2
- array_all()Polyfill for `array_all()` function added in PHP 8.4.
- rest_are_values_equal()Checks the equality of two values, following JSON Schema semantics.
Used by · 2
- rest_are_values_equal()Checks the equality of two values, following JSON Schema semantics.
- rest_validate_enum()Validates that the given value is a member of the JSON Schema "enum".
Source code
function rest_are_values_equal( $value1, $value2 ) { if ( is_array( $value1 ) && is_array( $value2 ) ) { if ( count( $value1 ) !== count( $value2 ) ) { return false; } return array_all( $value1, fn( $value, $index ) => array_key_exists( $index, $value2 ) && rest_are_values_equal( $value, $value2[ $index ] ) ); } if ( is_int( $value1 ) && is_float( $value2 ) || is_float( $value1 ) && is_int( $value2 ) ) { return (float) $value1 === (float) $value2; } return $value1 === $value2;}Changelog
Introduced in 5.7.0. 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/rest-api.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it. - Corrections
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