php的memcache模塊

php的memcache模塊：

下載地址：http://pecl.php.net/package/memcache

下載并配置生成php的memcache模塊

wget http://pecl.php.net/get/memcache-3.0.8.tgz
yum install -y m4 autoconf
tar -zxvf memcache-3.0.8.tgz
cd memcache-3.0.8

/usr/local/php/bin/phpize   //生成.config文件

./configure --with-php-config=/usr/local/php/bin/php-config
make && make install
mkdir /usr/local/php/ext 創建一個統一的存放擴展目錄 

打開php.ini

如果沒有php.ini   {cp /usr/local/src/php-5.3.27/php.ini-production /usr/local/php/etc/php.ini}

添加：extension_dir = "/usr/local/php/ext"定義一個統一的存放目錄。 
cp /usr/local/php/lib/php/extensions/no-debug-non-zts-20121212/memcache.so /usr/local/php/ext 復制模塊進目錄里 

然后再編輯php.ini在最后添加一行extension = memcache.so 

檢測一下/usr/local/php/bin/php -m |grep memcache 查看模塊是否已經加載上。

用一個php腳本：

<?php
//連接Memcache Memcache ip地址可以改
$mem = new Memcache;
$mem->connect("192.168.47.26", 11211);
//保存數據
$mem->set('key1', 'This is first value', 0, 60);
$val = $mem->get('key1');
echo "Get key1 value: " . $val ."<br>";
//替換數據
$mem->replace('key1', 'This is replace value', 0, 60);
$val = $mem->get('key1');
echo "Get key1 value: " . $val . "<br>";
//保存數組數據
$arr = array('aaa', 'bbb', 'ccc', 'ddd');
$mem->set('key2', $arr, 0, 60);
$val2 = $mem->get('key2');
echo "Get key2 value: ";
print_r($val2);
echo "<br>";
//刪除數據
$mem->delete('key1');
$val = $mem->get('key1');
echo "Get key1 value: " . $val . "<br>";
//清除所有數據
$mem->flush();
$val2 = $mem->get('key2');
echo "Get key2 value: ";
print_r($val2);
echo "<br>";
//關閉連接
$mem->close();
?>

實現session共享:

在php.ini里配置連接：

添加：

session.save_handler = "memcache"
session.save_path = "tcp://192.168.47.26:11211"

在httpd.conf【LAMP】里配置連接：apache

虛擬主機配置添加：

php_value session.save_handler "memcache"

php_value session.save_path "tcp://192.168.47.26:11211"

在php-fpm.conf【LNMP】里配置連接：nginx

對應的pool里面添加：

php_value[session.save_handler] = memcache

php_value[session.save_path] = "tcp://192.168.47.26:11211"