Increments numeric cache item’s value.

Parameters

$keyint|stringrequired

The cache key to increment.

$offsetintoptional

The amount by which to increment the item’s value.

Default:1

$groupstringoptional

The group the key is in. Default 'default'.

Default:'default'

Return

Source

public function incr( $key, $offset = 1, $group = 'default' ) {
	if ( ! $this->is_valid_key( $key ) ) {
		return false;
	}

	if ( empty( $group ) ) {
		$group = 'default';
	}

	if ( $this->multisite && ! isset( $this->global_groups[ $group ] ) ) {
		$key = $this->blog_prefix . $key;
	}

	if ( ! $this->_exists( $key, $group ) ) {
		return false;
	}

	if ( ! is_numeric( $this->cache[ $group ][ $key ] ) ) {
		$this->cache[ $group ][ $key ] = 0;
	}

	$offset = (int) $offset;

	$this->cache[ $group ][ $key ] += $offset;

	if ( $this->cache[ $group ][ $key ] < 0 ) {
		$this->cache[ $group ][ $key ] = 0;
	}

	return $this->cache[ $group ][ $key ];
}

View all references View on Trac View on GitHub

Changelog