wp_opcache_invalidate_directory( string $dir )

Source

function wp_opcache_invalidate_directory( $dir ) {	global $wp_filesystem;	if ( ! is_string( $dir ) || '' === trim( $dir ) ) {	if ( WP_DEBUG ) {	$error_message = sprintf(	/* translators: %s: The function name. */	__( '%s expects a non-empty string.' ),	'<code>wp_opcache_invalidate_directory()</code>'	);	wp_trigger_error( '', $error_message );	}	return;	}	$dirlist = $wp_filesystem->dirlist( $dir, false, true );	if ( empty( $dirlist ) ) {	return;	}	/* * Recursively invalidate opcache of files in a directory. * * WP_Filesystem_*::dirlist() returns an array of file and directory information. * * This does not include a path to the file or directory. * To invalidate files within sub-directories, recursion is needed * to prepend an absolute path containing the sub-directory's name. * * @param array $dirlist Array of file/directory information from WP_Filesystem_Base::dirlist(), * with sub-directories represented as nested arrays. * @param string $path Absolute path to the directory. */	$invalidate_directory = static function ( $dirlist, $path ) use ( &$invalidate_directory ) {	$path = trailingslashit( $path );	foreach ( $dirlist as $name => $details ) {	if ( 'f' === $details['type'] ) {	wp_opcache_invalidate( $path . $name, true );	} elseif ( is_array( $details['files'] ) && ! empty( $details['files'] ) ) {	$invalidate_directory( $details['files'], $path . $name );	}	}	};	$invalidate_directory( $dirlist, $dir ); } 

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