In which folder is the wordpress plugin located?

plugins_url()

Get the URI of the directory of the current plug-in, for example, a plug-in is located at /wp-content/ Under plugins/myplugin, the main file name of the plug-in in this directory is myplugin.php. Execute the following code in myplugin.php. The result is as follows:

echo plugins_url();
//输出：https://www.53431.com/wp-content/plugins
echo plugins_url('',__FILE__);
//输出：https://www.53431.com/wp-content/plugins/myplugin
echo plugins_url('js/myscript.js',__FILE__);
//输出：https://www.53431.com/wp-content/plugins/myplugin/js/myscript.js

plugin_dir_url()

Returns the directory URI of the current plug-in, for example

echo plugin_dir_url(__FILE__ );
//输出：https://www.53431.com/wp-content/plugins/myplugin/

Note the backslash at the end.

Related recommendations: "WordPress Tutorial"

plugin_dir_path()

Returns the server absolute path of the current plug-in directory, for example

echo plugin_dir_path(__FILE__ );
//输出：/home/user/public_html/wp-content/plugins/myplugin/

can be used to reference files, for example

<?php
define(&#39;MYPLUGINNAME_PATH&#39;, plugin_dir_path(__FILE__) );
require MYPLUGINNAME_PATH . &#39;includes/class-metabox.php&#39;;
require MYPLUGINNAME_PATH . &#39;includes/class-widget.php&#39;;
?>

plugin_basename()

Returns the name of the plug-in file that calls this function (including the plug-in Path)

For example, if you call this function in the myplugin.php file under the plug-in myplugin, the result is as follows

echo plugin_basename(__FILE__);
//输出：myplugin/myplugin.php

If you call it in the myplugin/include/test.php file (test.php passes include Referenced to myplugin.php), the results are as follows

echo plugin_basename(__FILE__);
//输出：myplugin/include/test.php

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