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wp_cache_incr( int|string $key, int $offset = 1, string $group = '' )

Increment numeric cache item’s value

$key

(int|string) (Required) The key for the cache contents that should be incremented.

$offset

(int) (Optional) The amount by which to increment the item's value.

Default value: 1

$group

(string) (Optional) The group the key is in.

Default value: ''

(int|false) The item's new value on success, false on failure.

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

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

Uses	Description
wp-includes/class-wp-object-cache.php: WP_Object_Cache::incr()	Increments numeric cache item’s value.

Version	Description
3.3.0	Introduced.

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_cache_incr