title: Do PHP child processes use the same Mysqli Connection Pool?
body: <p>This is what the PHP Documentation has to say on Connection Pooling:</p>
  
  <blockquote>
    <p>The mysqli extension supports persistent database connections, which are a special kind of pooled connections.</p>
  </blockquote>
  
  <p>and</p>
  
  <blockquote>
    <p>Every PHP process is using its own Mysqli connection pool.</p>
  </blockquote>
  
  <p>But do child processes (after a fork()) share the same connection pool?</p>
  
  <p>Therefore, is a permanent database connection avoiding that one child closes another child's connection?</p>