Checks if the plugin is installed.
Parameters
$pluginstringrequired- The plugin file.
Source
protected function is_plugin_installed( $plugin ) {
return file_exists( WP_PLUGIN_DIR . '/' . $plugin );
}
Changelog
| Version | Description |
|---|---|
| 5.5.0 | Introduced. |
| CARVIEW |
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HTTP/2 200
server: nginx
date: Wed, 23 Jul 2025 22:16:25 GMT
content-type: text/html; charset=UTF-8
vary: Accept-Encoding
x-olaf: ⛄
link: ; rel="alternate"; title="JSON"; type="application/json"
link: ; rel=shortlink
x-frame-options: SAMEORIGIN
content-encoding: gzip
alt-svc: h3=":443"; ma=86400
x-nc: MISS ord 2
WP_REST_Plugins_Controller::is_plugin_installed() – Method | Developer.WordPress.org
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