Cookie::domain_matches( string $domain ): boolean
- Source
wp-includes/Requests/src/Cookie.php:181
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.
Parameters
$domainstring- Domain to check
Return value
boolean- Whether the cookie is valid for the given domain
Performance profile
How much work a call to Cookie::domain_matches() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Trivial
- Scaling
- Constant
- Instructions
- 5–35
- Plugin surface
- None
- Called by
- 0
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 42.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What one call costs · 1 distinct outcome
One number would be a lie: the work depends on which branch runs. These are every distinct cost Cookie::domain_matches() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 5–35 | none |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 42 | 5–35 | 7 | |
| 8.5 | 42 | 5–35 | 7 | |
| 8.4 | 42 | 5–35 | 7 | 13 fewer instructions than PHP 8.3 |
| 8.3 | 55 | 5–48 | 7 | |
| 8.2 | 55 | 5–48 | 7 | |
| 8.1 | 55 | 5–48 | 7 | |
| 7.4 | 55 | 5–48 | 7 |
An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.
Source code
public function domain_matches($domain) { if (is_string($domain) === false) { return false; } if (!isset($this->attributes['domain'])) { // Cookies created manually; cookies created by Requests will set // the domain to the requested domain return true; } $cookie_domain = $this->attributes['domain']; if ($cookie_domain === $domain) { // The cookie domain and the passed domain are identical. return true; } // If the cookie is marked as host-only and we don't have an exact // match, reject the cookie if ($this->flags['host-only'] === true) { return false; } if (strlen($domain) <= strlen($cookie_domain)) { // For obvious reasons, the cookie domain cannot be a suffix if the passed domain // is shorter than the cookie domain return false; } if (substr($domain, -1 * strlen($cookie_domain)) !== $cookie_domain) { // The cookie domain should be a suffix of the passed domain. return false; } $prefix = substr($domain, 0, strlen($domain) - strlen($cookie_domain)); if (substr($prefix, -1) !== '.') { // The last character of the passed domain that is not included in the // domain string should be a %x2E (".") character. return false; } // The passed domain should be a host name (i.e., not an IP address). return !preg_match('#^(.+\.)\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$#', $domain); }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-includes/Requests/src/Cookie.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.