wp_cache_incr() WP 3.3.0

Increment numeric cache item's value

No Hooks.

Return

false/Int. False on failure, the item's new value on success.

Usage

wp_cache_incr( $key, $offset, $group );

$key(int/string) (required)

The key for the cache contents that should be incremented.

$offset(int)

The amount by which to increment the item's value.
Default: 1

$group(string)

The group the key is in.
Default: ''

Code of wp cache incr: wp-includes/cache.php ^{VER 5.1.1}

<?php
function wp_cache_incr( $key, $offset = 1, $group = '' ) {
	global $wp_object_cache;

	return $wp_object_cache->incr( $key, $offset, $group );
}