wincache_unlock(3) [php man page]

WINCACHE_UNLOCK(3)							 1							WINCACHE_UNLOCK(3)

wincache_unlock - Releases an exclusive lock on a given key

SYNOPSIS

       bool wincache_unlock (string  $key)

DESCRIPTION

	Releases  an  exclusive  lock that was obtained on a given key by using wincache_lock(3). If any other process was blocked waiting for the
       lock on this key, that process will be able to obtain the lock.

       Warning

	       Using of the wincache_lock(3) and wincache_unlock(3) can cause deadlocks when executing PHP scripts in a multi-process  environment
	      like  FastCGI. Do not use these functions unless you are absolutely sure you need to use them. For the majority of the operations on
	      the user cache it is not necessary to use these functions.

PARAMETERS

	      o $key
		- Name of the key in the cache to release the lock on.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      Using wincache_unlock(3)

	      <?php
	      $fp = fopen("/tmp/lock.txt", "r+");
	      if (wincache_lock("lock_txt_lock")) { // do an exclusive lock
		  ftruncate($fp, 0); // truncate file
		  fwrite($fp, "Write something here
");
		  wincache_unlock("lock_txt_lock"); // release the lock
	      } else {
		  echo "Couldn't get the lock!";
	      }
	      fclose($fp);
	      ?>

SEE ALSO

       wincache_lock(3),    wincache_ucache_set(3),    wincache_ucache_get(3),	  wincache_ucache_delete(3),	wincache_ucache_clear(3),     win-
       cache_ucache_exists(3), wincache_ucache_meminfo(3), wincache_ucache_info(3), wincache_scache_info(3).

PHP Documentation Group 													WINCACHE_UNLOCK(3)

WINCACHE_UCACHE_SET(3)							 1						    WINCACHE_UCACHE_SET(3)

wincache_ucache_set - Adds a variable in user cache and overwrites a variable if it already exists in the cache

SYNOPSIS

       bool wincache_ucache_set (mixed	$key, mixed  $value, [int  $ttl])

DESCRIPTION

       bool wincache_ucache_set (array	$values, [mixed  $unused = NULL], [int	$ttl])

	Adds  a variable in user cache. Overwrites a variable if it already exists in the cache. The added or updated variable remains in the user
       cache unless its time to live expires or it is deleted by using wincache_ucache_delete(3) or wincache_ucache_clear(3) functions.

PARAMETERS

	      o $key
		- Store the variable using this $key name. If a variable with same $key is already present the function will overwrite the  previ-
		ous  value  with  the new one. $key is case sensitive. $key can also take array of name => value pairs where names will be used as
		keys. This can be used to add multiple values in the cache in one operation, thus avoiding race condition.

	      o $value
		- Value of a variable to store. $Value supports all data types except resources, such as file handles. This paramter is ignored if
		first  argument is an array. A general guidance is to pass NULL as $value while using array as $key. If $value is an object, or an
		array containing objects, then the objects will be serialized. See __sleep() for details on serializing objects.

	      o $values
		- Associative array of keys and values.

	      o $ttl
		- Time for the variable to live in the cache in seconds. After the value specified in $ttl has passed the stored variable will	be
		deleted  from  the cache. This parameter takes a default value of 0 which means the variable will stay in the cache unless explic-
		itly deleted by using wincache_ucache_delete(3) or wincache_ucache_clear(3) functions.

RETURN VALUES

	If $key is string, the function returns TRUE on success and FALSE on failure.

	If $key is an array, the function returns:

	      o If all the name => value pairs in the array can be set, function returns an empty array;

	      o If all the name => value pairs in the array cannot be set, function returns
		FALSE;

	      o If some can be set while others cannot, function returns an array with name=>value pair for which the addition failed in the  user
	      cache.

EXAMPLES

       Example #1

	      wincache_ucache_set(3) with $key as a string

	      <?php
	      $bar = 'BAR';
	      var_dump(wincache_ucache_set('foo', $bar));
	      var_dump(wincache_ucache_get('foo'));
	      $bar1 = 'BAR1';
	      var_dump(wincache_ucache_set('foo', $bar1));
	      var_dump(wincache_ucache_get('foo'));
	      ?>

	      The above example will output:

	      bool(true)
	      string(3) "BAR"
	      bool(true)
	      string(3) "BAR1"

       Example #2

	      wincache_ucache_set(3) with $key as an array

	      <?php
	      $colors_array = array('green' => '5', 'Blue' => '6', 'yellow' => '7', 'cyan' => '8');
	      var_dump(wincache_ucache_set($colors_array));
	      var_dump(wincache_ucache_set($colors_array));
	      var_dump(wincache_ucache_get('Blue'));
	      ?>

	      The above example will output:

	      array(0) {}
	      array(0) {}
	      string(1) "6"

SEE ALSO

       wincache_ucache_add(3),	 wincache_ucache_get(3),   wincache_ucache_delete(3),  wincache_ucache_clear(3),  wincache_ucache_exists(3),  win-
       cache_ucache_meminfo(3), wincache_ucache_info(3), __sleep().

PHP Documentation Group 												    WINCACHE_UCACHE_SET(3)