Core Function
View Source on Trac ↗ wp_cache_add()
wp_cache_add( mixed $key, mixed $data, mixed $group = '', mixed $expire = 0 ) Adds data to the cache, if the cache key doesn't already exist.
Parameters 4 required
| Name / Type | Description |
|---|---|
| (int | | string) $key The cache key to use for retrieval later. Required |
| $data mixed | The data to add to the cache. Required |
| string | $group Optional. The group to add the cache to. Enables the same key to be used across groups. Default empty. Required |
| int | $expire Optional. When the cache data should expire, in seconds. Default 0 (no expiration). Required |
Return Value
(bool)
True on success, false if cache key and group already exist.
Function Information
Since Version
2.0.0
Source File
wp-includes/cache.php
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