Returns a list of available storage handler

# mysqlnd_qc_get_available_handlers

(PECL mysqlnd_qc >= 1.0.0)

mysqlnd_qc_get_available_handlers — Returns a list of available storage handler

### 説明

mysqlnd_qc_get_available_handlers ( void ) : array

Which storage are available depends on the compile time configuration of the query cache plugin. The default storage handler is always available. All other storage handler must be enabled explicitly when building the extension.

### パラメータ

この関数にはパラメータはありません。

### 返り値

Returns an array of available built-in storage handler. For each storage handler the version number and version string is given.

### 例

例1 mysqlnd_qc_get_available_handlers() example

`<?php
var_dump(mysqlnd_qc_get_available_handlers());
?>`

上の例の出力は以下となります。

    array(5) {
      ["default"]=>
      array(2) {
        ["version"]=>
        string(5) "1.0.0"
        ["version_number"]=>
        int(100000)
      }
      ["user"]=>
      array(2) {
        ["version"]=>
        string(5) "1.0.0"
        ["version_number"]=>
        int(100000)
      }
      ["APC"]=>
      array(2) {
        ["version"]=>
        string(5) "1.0.0"
        ["version_number"]=>
        int(100000)
      }
      ["MEMCACHE"]=>
      array(2) {
        ["version"]=>
        string(5) "1.0.0"
        ["version_number"]=>
        int(100000)
      }
      ["sqlite"]=>
      array(2) {
        ["version"]=>
        string(5) "1.0.0"
        ["version_number"]=>
        int(100000)
      }
    }

### 参考

- Installation
- mysqlnd_qc_set_storage_handler() - Change current storage handler