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<?php
namespace Safe;
use Safe\Exceptions\ApcException;
/**
* Retrieves cached information and meta-data from APC's data store.
*
* @param string $cache_type If cache_type is "user",
* information about the user cache will be returned.
*
* If cache_type is "filehits",
* information about which files have been served from the bytecode cache
* for the current request will be returned. This feature must be enabled at
* compile time using --enable-filehits.
*
* If an invalid or no cache_type is specified, information about
* the system cache (cached files) will be returned.
* @param bool $limited If limited is TRUE, the
* return value will exclude the individual list of cache entries. This
* is useful when trying to optimize calls for statistics gathering.
* @return array Array of cached data (and meta-data)
* @throws ApcException
*
*/
function apc_cache_info(string $cache_type = '', bool $limited = false): array
{
error_clear_last();
$result = \apc_cache_info($cache_type, $limited);
if ($result === false) {
throw ApcException::createFromPhpError();
}
return $result;
}
/**
* apc_cas updates an already existing integer value if the
* old parameter matches the currently stored value
* with the value of the new parameter.
*
* @param string $key The key of the value being updated.
* @param int $old The old value (the value currently stored).
* @param int $new The new value to update to.
* @throws ApcException
*
*/
function apc_cas(string $key, int $old, int $new): void
{
error_clear_last();
$result = \apc_cas($key, $old, $new);
if ($result === false) {
throw ApcException::createFromPhpError();
}
}
/**
* Stores a file in the bytecode cache, bypassing all filters.
*
* @param string $filename Full or relative path to a PHP file that will be compiled and stored in
* the bytecode cache.
* @param bool $atomic
* @return mixed Returns TRUE on success.
* @throws ApcException
*
*/
function apc_compile_file(string $filename, bool $atomic = true)
{
error_clear_last();
$result = \apc_compile_file($filename, $atomic);
if ($result === false) {
throw ApcException::createFromPhpError();
}
return $result;
}
/**
* Decreases a stored integer value.
*
* @param string $key The key of the value being decreased.
* @param int $step The step, or value to decrease.
* @param bool|null $success Optionally pass the success or fail boolean value to
* this referenced variable.
* @return int Returns the current value of key's value on success
* @throws ApcException
*
*/
function apc_dec(string $key, int $step = 1, ?bool &$success = null): int
{
error_clear_last();
$result = \apc_dec($key, $step, $success);
if ($result === false) {
throw ApcException::createFromPhpError();
}
return $result;
}
/**
* define is notoriously slow. Since the main benefit of
* APC is to increase the performance of scripts/applications, this mechanism
* is provided to streamline the process of mass constant definition. However,
* this function does not perform as well as anticipated.
*
* For a better-performing solution, try the
* hidef extension from PECL.
*
* @param string $key The key serves as the name of the constant set
* being stored. This key is used to retrieve the
* stored constants in apc_load_constants.
* @param array $constants An associative array of constant_name => value
* pairs. The constant_name must follow the normal
* constant naming rules.
* value must evaluate to a scalar value.
* @param bool $case_sensitive The default behaviour for constants is to be declared case-sensitive;
* i.e. CONSTANT and Constant
* represent different values. If this parameter evaluates to FALSE the
* constants will be declared as case-insensitive symbols.
* @throws ApcException
*
*/
function apc_define_constants(string $key, array $constants, bool $case_sensitive = true): void
{
error_clear_last();
$result = \apc_define_constants($key, $constants, $case_sensitive);
if ($result === false) {
throw ApcException::createFromPhpError();
}
}
/**
* Deletes the given files from the opcode cache.
*
* @param mixed $keys The files to be deleted. Accepts a string,
* array of strings, or an APCIterator
* object.
* @return mixed Returns TRUE on success.
* Or if keys is an array, then
* an empty array is returned on success, or an array of failed files
* is returned.
* @throws ApcException
*
*/
function apc_delete_file($keys)
{
error_clear_last();
$result = \apc_delete_file($keys);
if ($result === false) {
throw ApcException::createFromPhpError();
}
return $result;
}
/**
* Removes a stored variable from the cache.
*
* @param string|string[]|\APCIterator $key The key used to store the value (with
* apc_store).
* @throws ApcException
*
*/
function apc_delete($key): void
{
error_clear_last();
$result = \apc_delete($key);
if ($result === false) {
throw ApcException::createFromPhpError();
}
}
/**
* Increases a stored number.
*
* @param string $key The key of the value being increased.
* @param int $step The step, or value to increase.
* @param bool|null $success Optionally pass the success or fail boolean value to
* this referenced variable.
* @return int Returns the current value of key's value on success
* @throws ApcException
*
*/
function apc_inc(string $key, int $step = 1, ?bool &$success = null): int
{
error_clear_last();
$result = \apc_inc($key, $step, $success);
if ($result === false) {
throw ApcException::createFromPhpError();
}
return $result;
}
/**
* Loads a set of constants from the cache.
*
* @param string $key The name of the constant set (that was stored with
* apc_define_constants) to be retrieved.
* @param bool $case_sensitive The default behaviour for constants is to be declared case-sensitive;
* i.e. CONSTANT and Constant
* represent different values. If this parameter evaluates to FALSE the
* constants will be declared as case-insensitive symbols.
* @throws ApcException
*
*/
function apc_load_constants(string $key, bool $case_sensitive = true): void
{
error_clear_last();
$result = \apc_load_constants($key, $case_sensitive);
if ($result === false) {
throw ApcException::createFromPhpError();
}
}
/**
* Retrieves APC's Shared Memory Allocation information.
*
* @param bool $limited When set to FALSE (default) apc_sma_info will
* return a detailed information about each segment.
* @return array Array of Shared Memory Allocation data; FALSE on failure.
* @throws ApcException
*
*/
function apc_sma_info(bool $limited = false): array
{
error_clear_last();
$result = \apc_sma_info($limited);
if ($result === false) {
throw ApcException::createFromPhpError();
}
return $result;
}
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