WP_Object_Cache::decr( int|string $key, int $offset = 1, string $group = 'default' ): int|false
Decrements numeric cache item’s value.
Parameters
-
$keyint|string Required -
The cache key to decrement.
-
$offsetint Optional -
The amount by which to decrement the item's value.
Default:
1 -
$groupstring Optional -
The group the key is in. Default
'default'.Default:
'default'
Return
int|false The item's new value on success, false on failure.
Source
File: wp-includes/class-wp-object-cache.php.
View all references
public function decr( $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 ];
}
Changelog
| Version | Description |
|---|---|
| 3.3.0 | Introduced. |