PHP uses memcache to store session method summary_PHP tutorial-PHP Tutorial-php.cn

PHP uses memcache to store session method summary_PHP tutorial

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Release： 2016-07-13 10:42:09

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Set session to use memcache to store

Method I: Set globally in php.ini
session.save_handler = memcache
session.save_path = "tcp://127.0.0.1:11211"

Method II: .htaccess in a certain directory
php_value session.save_handler "memcache"
php_value session.save_path "tcp://127.0.0.1:11211"

Method III: Or in a certain application

<span 1</span> <span ini_set</span>("session.save_handler", "memcache"<span ); 
</span><span 2</span> <span ini_set</span>("session.save_path", "tcp://127.0.0.1:11211");

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When using multiple memcached servers, separate them with commas ",", and as explained in the Memcache::addServer() document, you can take additional parameters "persistent", "weight", "timeout", "retry_interval" " Wait, something like this: "tcp://host1:port1?persistent=1&weight=2,tcp://host2:port2".

If the installed PECL is memcached (the extension that relies on the libmemcached library), the configuration should be
Php code collection code
ini_set("session.save_handler", "memcached"); // It is memcached, not memcache
ini_set("session.save_path", "127.0.0.1:11211"); // Don’t tcp:[/b]

Code example (the one that does not depend on the libmemcached library)

<span  1</span> <?<span php 
</span><span  2</span> <span session_start</span><span (); 
</span><span  3</span> <span if</span> (!<span isset</span>(<span $_SESSION</span>['TEST'<span ])) { 
</span><span  4</span> <span $_SESSION</span>['TEST'] = <span time</span><span (); 
</span><span  5</span> <span } 
</span><span  6</span> 
<span  7</span> <span $_SESSION</span>['TEST3'] = <span time</span><span (); 
</span><span  8</span> 
<span  9</span> <span print</span> <span $_SESSION</span>['TEST'<span ]; 
</span><span 10</span> <span print</span> "<br><br>"<span ; 
</span><span 11</span> <span print</span> <span $_SESSION</span>['TEST3'<span ]; 
</span><span 12</span> <span print</span> "<br><br>"<span ; 
</span><span 13</span> <span print</span> <span session_id</span><span (); 
</span><span 14</span> ?>

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Use sessionid to check in memcached:

<?php 
$memcache = memcache_connect('localhost', 11211); 
var_dump($memcache->get('19216821213c65cedec65b0883238c278eeb573e077')); 
$memcache->set('aaaa', 'hello everyone'); 
var_dump($memcache->get('aaaa')); 
?>

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You will see
string(37) "TEST|i:1177556731;TEST3|i:1177556881;"
Output like this proves that the session is working normally.