PHP memcache single case

1. Set __construct () to private so that the external new is not allowed
2. Instantiates an object inside the class. External can be obtained on the line

classMemextendsMemcache{privatestatic$mem_instancenull;    privatefunction__construct(){parent::__construct();    }    privatefunction__clone(){}    publicstaticfunctionget_mem_ins(){if(nullself::$mem_instance){            self::$mem_instancenew Memcache;        }        returnself::$mem_instance;    }}

1. Memcache operation

   Php//Connection$mem=NewMemcache;$mem -Connect"Db.nowamagic.net",12000);//Save Data$mem -Set(' Key1 ',' This is first value ',0, -);$val=$mem -Get' Key1 '); Echo"Get key1 value:".$val."
";//Replace data$mem -Replace' Key1 ',' This is replace value ',0, -);$val=$mem -Get' Key1 '); Echo"Get key1 value:".$val."
";//Save array$arr=Array(' AAA ',' BBB ',' CCC ',' DDD ');$mem -Set(' Key2 ',$arr,0, -);$val 2=$mem -Get' Key2 '); Echo"Get key2 value:"; Print_r ($val 2); Echo"
";//Delete data$mem -Delete' Key1 ');$val=$mem -Get' Key1 '); Echo"Get key1 value:".$val."
";//Clear All data$mem -Flush ();$val 2=$mem -Get' Key2 '); Echo"Get key2 value:"; Print_r ($val 2); Echo"
";//Close connection$mem -Close ();?>

1. Output

valueisvaluevalueisvaluevalue: Array ( [0] => aaa [1] => bbb [2] => ccc [3valuevalue:

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