Determine if a keys exists.¶
SYNOPSIS¶
#include <libmemcached/memcached.h>
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memcached_return_t
memcached_exist
(memcached_st *ptr, char *key, size_t *key_length)¶
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memcached_return_t
memcached_exist_by_key
(memcached_st *ptr, char *group_key, size_t *group_key_length, char *key, size_t *key_length)¶
Compile and link with -lmemcached
New in version 0.53.
DESCRIPTION¶
memcached_exist()
can be used to check if a key exists.
RETURN¶
MEMCACHED_SUCCESS
The key exists.
MEMCACHED_NOTFOUND
The key was not found.