got_url_rewrite(): bool
- Since
- 3.7.0
- Source
wp-admin/includes/misc.php:46
Description
Detects Apache's mod_rewrite, IIS 7.0+ permalink support, and nginx.
Compatibility
- WordPress
- since 3.7.0
- 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.
Return value
bool- Whether the server supports URL rewriting.
Performance profile
How much work a call to got_url_rewrite() 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
- 9–16
- Plugin surface
- 1 hook
- 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 16.
Third-party callbacks on 'got_url_rewrite' run inside this call, and their cost is not bounded by anything here.
1 place in core call this, so the cost is paid more often than your own code shows.
What it touches
- hookthird-party callbacks
apply_filters()called directly
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 got_url_rewrite() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 9–13 | got_mod_rewrite(), apply_filters() |
!got_mod_rewrite() | 16 | got_mod_rewrite(), iis7_supports_permalinks(), apply_filters() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 16 | 9–16 | 3 | |
| 8.5 | 16 | 9–16 | 3 | |
| 8.4 | 16 | 9–16 | 3 | |
| 8.3 | 16 | 9–16 | 3 | |
| 8.2 | 16 | 9–16 | 3 | |
| 8.1 | 16 | 9–16 | 3 | 2 fewer instructions than PHP 7.4 |
| 7.4 | 18 | 9–18 | 3 |
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 got_url_rewrite() runs, in this order:
- apply_filters( got_url_rewrite )filterline 56 (+10 into the body)
Filters whether URL rewriting is available.
Uses · 3
- got_mod_rewrite()Returns whether the server is running Apache with the mod_rewrite module loaded.
- iis7_supports_permalinks()Checks if IIS 7+ supports pretty permalinks.
- apply_filters()Calls the callback functions that have been added to a filter hook.
Used by · 1
- WP_Debug_Data::get_wp_server()Gets the WordPress server section of the debug data.
Source code
function got_url_rewrite() { $got_url_rewrite = ( got_mod_rewrite() || $GLOBALS['is_nginx'] || $GLOBALS['is_caddy'] || iis7_supports_permalinks() ); /** * Filters whether URL rewriting is available. * * @since 3.7.0 * * @param bool $got_url_rewrite Whether URL rewriting is available. */ return apply_filters( 'got_url_rewrite', $got_url_rewrite );}Changelog
Introduced in 3.7.0. 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-admin/includes/misc.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.