How can server load balancing impact the stability of user sessions in a PHP application with multiple servers?

Server load balancing can impact the stability of user sessions in a PHP application with multiple servers by causing session data to be stored on different servers, leading to inconsistencies and session loss. To solve this issue, you can implement session stickiness or use a centralized session storage solution like Redis or Memcached.

// Enable session stickiness in PHP to ensure sessions are always handled by the same server
ini_set(&#039;session.save_handler&#039;, &#039;files&#039;);
ini_set(&#039;session.save_path&#039;, &#039;/path/to/session/files&#039;);
ini_set(&#039;session.cookie_domain&#039;, &#039;.example.com&#039;);
ini_set(&#039;session.cookie_path&#039;, &#039;/&#039;);
ini_set(&#039;session.cookie_secure&#039;, true);
ini_set(&#039;session.cookie_httponly&#039;, true);
ini_set(&#039;session.use_strict_mode&#039;, true);
ini_set(&#039;session.use_cookies&#039;, true);
ini_set(&#039;session.use_only_cookies&#039;, true);
ini_set(&#039;session.cache_limiter&#039;, &#039;nocache&#039;);
session_start();

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server load balancing user sessions PHP application multiple servers stability

How can server load balancing impact the stability of user sessions in a PHP application with multiple servers?

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