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			_wp_delete_all_temp_backups is private and should not be used in themes or plugins directly.
_wp_delete_all_temp_backups › WordPress Function
Since6.3.0
Deprecatedn/a
› _wp_delete_all_temp_backups ( No parameters )
| Access: | 
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| Defined at: | 
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| Codex: | 
Deletes all contents in the temporary backup directory.
Related Functions: wp_delete_all_temp_backups, wp_mediaelement_fallback, _wp_delete_tax_menu_item, wp_delete_term, wp_delete_nav_menu
	Source
function _wp_delete_all_temp_backups() {
	global $wp_filesystem;
	if ( ! function_exists( 'WP_Filesystem' ) ) {
		require_once ABSPATH . 'wp-admin/includes/file.php';
	}
	ob_start();
	$credentials = request_filesystem_credentials( '' );
	ob_end_clean();
	if ( false === $credentials || ! WP_Filesystem( $credentials ) ) {
		wp_trigger_error( __FUNCTION__, __( 'Could not access filesystem.' ) );
		return;
	}
	if ( ! $wp_filesystem->wp_content_dir() ) {
		wp_trigger_error(
			__FUNCTION__,
			/* translators: %s: Directory name. */
			sprintf( __( 'Unable to locate WordPress content directory (%s).' ), 'wp-content' )
		);
		return;
	}
	$temp_backup_dir = $wp_filesystem->wp_content_dir() . 'upgrade-temp-backup/';
	$dirlist         = $wp_filesystem->dirlist( $temp_backup_dir );
	$dirlist         = $dirlist ? $dirlist : array();
	foreach ( array_keys( $dirlist ) as $dir ) {
		if ( '.' === $dir || '..' === $dir ) {
			continue;
		}
		$wp_filesystem->delete( $temp_backup_dir . $dir, true );
	}
}