PHP Functions Essential Reference

shm_remove_var

bool shm_remove_var(int shm_id, int variable_key) 

shm_id	ID of a shared memory segment
variable_key	Name of variable to remove

Removes a variable from shared memory.

Returns:

TRUE on success; FALSE on failure

Description:

shm_remove_var() removes the variable named by variable_key from the shared memory segment identified by shm_id . FALSE is returned if variable_key is not present in the segment, or if shm_id is not a valid identifier as returned by shm_attach().

Version:

PHP 3 since 3.0.6, PHP 4

See also:

shm_attach() 
shm_detach() 
shm_get_var() 
shm_put_var() 
shm_remove() 

Example:

Remove a variable from shared memory

if (!@shm_remove_var($shm_id, $varname)) { echo "Failed to remove variable '$varname'; reason: $php_errormsg\n"; ...