wp_delete_file_from_directory( string $file, string $directory )

Deletes a file if its path is within the given directory.

Parameters

$file

(Required) Absolute path to the file to delete.

$directory

(Required) Absolute path to a directory.

Return

(bool) True on success, false on failure.

Source

File: wp-includes/functions.php 

function wp_delete_file_from_directory( $file, $directory ) {
	$real_file = realpath( wp_normalize_path( $file ) );
	$real_directory = realpath( wp_normalize_path( $directory ) );

	if ( false === $real_file || false === $real_directory || strpos( wp_normalize_path( $real_file ), trailingslashit( wp_normalize_path( $real_directory ) ) ) !== 0 ) {
		return false;
	}

	wp_delete_file( $file );

	return true;
}

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Changelog

Changelog
Version Description
4.9.7 Introduced.