I try to apply a check figuring out if a plugin is either not active or just not installed at all in the plugin directory. When I test I check for a plugin installed but not activated as seen in the screenshot.
The checking if inactive part works flawlessly:
$isinactive = is_plugin_inactive( 'advanced-custom-fields/acf.php' );
var_dump( $isinactive );
While checking if the plugin is actually installed and present in the plugin directory does not. First I generate the path to the main plugin file:
$pathpluginurl = plugins_url( 'advanced-custom-fields/acf.php' );
var_dump($pathpluginurl);
Then check if that file exists:
$isinstalled = file_exists( $pathpluginurl );
var_dump($isinstalled);
And then check if the particular file does NOT exist:
if ( ! file_exists( $pathpluginurl ) ) {
echo "File does not exist";
} else {
echo "File exists";
}
The output:
true //true for that the plugin is not active
/wp-content/plugins/advanced-custom-fields/acf.php
false // false for that the acf.php file actually exists
file not exists
I don't understand why file_exists is not stating the facts and states the contrary saying the plugin does not exist?
I try to apply a check figuring out if a plugin is either not active or just not installed at all in the plugin directory. When I test I check for a plugin installed but not activated as seen in the screenshot.
The checking if inactive part works flawlessly:
$isinactive = is_plugin_inactive( 'advanced-custom-fields/acf.php' );
var_dump( $isinactive );
While checking if the plugin is actually installed and present in the plugin directory does not. First I generate the path to the main plugin file:
$pathpluginurl = plugins_url( 'advanced-custom-fields/acf.php' );
var_dump($pathpluginurl);
Then check if that file exists:
$isinstalled = file_exists( $pathpluginurl );
var_dump($isinstalled);
And then check if the particular file does NOT exist:
if ( ! file_exists( $pathpluginurl ) ) {
echo "File does not exist";
} else {
echo "File exists";
}
The output:
true //true for that the plugin is not active
http://mysandbox.test/wp-content/plugins/advanced-custom-fields/acf.php
false // false for that the acf.php file actually exists
file not exists
I don't understand why file_exists is not stating the facts and states the contrary saying the plugin does not exist?
Share Improve this question asked Nov 29, 2018 at 9:53 rkollerrkoller 6343 gold badges14 silver badges26 bronze badges 02 Answers
Reset to default 5file_exists expects a path, not a URL. To get the path to an arbitrary plugin you'll need to use WP_PLUGIN_DIR:
$pathpluginurl = WP_PLUGIN_DIR . '/advanced-custom-fields/acf.php';
$isinstalled = file_exists( $pathpluginurl );
you are using file_exists() function on an URL not on path to file, this will not work (in most cases).
Instead of
$pathpluginurl = plugins_url( 'advanced-custom-fields/acf.php' );
you should do to get an absolute file path
$pathpluginurl = ABSPATH . 'wp-content/plugins/advanced-custom-fields/acf.php';