WP_Role::has_cap( string $cap ): bool
- Since
- 2.0.0
- Source
wp-includes/class-wp-role.php:84
Compatibility
- WordPress
- since 2.0.0
- 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
$capstring- Capability name.
Return value
bool- Whether the role has the given capability.
Performance profile
How much work a call to WP_Role::has_cap() 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
- 15–16
- 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 17.
Third-party callbacks on 'role_has_cap' 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
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_Role::has_cap() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 15–16 | 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: 17 instructions, 15–16 executed per call, 1 branch. 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 WP_Role::has_cap() runs, in this order:
- apply_filters( role_has_cap )filterline 95 (+11 into the body)
Filters which capabilities a role has.
Uses · 1
- apply_filters()Calls the callback functions that have been added to a filter hook.
Source code
public function has_cap( $cap ) { /** * Filters which capabilities a role has. * * @since 2.0.0 * * @param bool[] $capabilities Array of key/value pairs where keys represent a capability name and boolean values * represent whether the role has that capability. * @param string $cap Capability name. * @param string $name Role name. */ $capabilities = apply_filters( 'role_has_cap', $this->capabilities, $cap, $this->name ); if ( ! empty( $capabilities[ $cap ] ) ) { return $capabilities[ $cap ]; } else { return false; } }Changelog
Introduced in 2.0.0. 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-includes/class-wp-role.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it. - Corrections
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