LLMS_Cache_Helper::get_prefix( string $group )

Retrieve a cache prefix that can be used with WP_Object_Cache methods

Description Description

Using a cache prefix allows simple invalidation of all items with the same prefix simply by updating the prefix.

The "prefix" is microtime(), if we wish to invalidate all items in the prefix group we call the method again with $invalidate=true which updates the prefix to the current microtime(), thereby invalidating the entire cache group.

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Parameters Parameters


(string) (Required) Cache group name.

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Return Return


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Source Source

File: includes/class.llms.cache.helper.php

	public static function get_prefix( $group ) {

		$key    = sprintf( 'llms_%s_cache_prefix', $group );
		$prefix = wp_cache_get( $key, $group );

		if ( false === $prefix ) {
			$prefix = microtime();
			wp_cache_set( $key, $prefix, $group );

		return sprintf( 'llms_cache_%s_', $prefix );


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Changelog Changelog

Version Description
4.0.0 Introduced.

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