plugin_basename() WP 1.0

Gets the basename of a plugin.

This method extracts the name of a plugin from its filename.

1 time = 0.000039s = very fast | 50000 times = 0.63s = very fast

No Hooks.

Return

String. The name of a plugin.

Usage

plugin_basename( $file );

$file(string) (required): The filename of plugin.

Notes

Global. Array. $wp_plugin_paths

Changelog

Since 1.5.0

Introduced.

Code of `plugin_basename() plugin basename` ^{WP 5.6}

wp-includes/plugin.php

<?php
function plugin_basename( $file ) {
	global $wp_plugin_paths;

	// $wp_plugin_paths contains normalized paths.
	$file = wp_normalize_path( $file );

	arsort( $wp_plugin_paths );
	foreach ( $wp_plugin_paths as $dir => $realdir ) {
		if ( strpos( $file, $realdir ) === 0 ) {
			$file = $dir . substr( $file, strlen( $realdir ) );
		}
	}

	$plugin_dir    = wp_normalize_path( WP_PLUGIN_DIR );
	$mu_plugin_dir = wp_normalize_path( WPMU_PLUGIN_DIR );

	// Get relative path from plugins directory.
	$file = preg_replace( '#^' . preg_quote( $plugin_dir, '#' ) . '/|^' . preg_quote( $mu_plugin_dir, '#' ) . '/#', '', $file );
	$file = trim( $file, '/' );
	return $file;
}

From tag: plugin

is_plugin_active()