MongoDB::setSlaveOkay
  Change slaveOkay setting for this database
  
 
  説明
  
   public bool MongoDB::setSlaveOkay
    ([ bool $ok = true
  ] )
  
  
 
  パラメータ
  
   
    
     - 
      
ok
      
     - 
      
       If reads should be sent to secondary members of a replica set for all 
       possible queries using this MongoDB instance.
      
      
       
   
  
  
 
  返り値
  
   Returns the former value of slaveOkay for this instance.
  
  
 
 
  参考
  
   - 優先読み込み
 
   -  MongoDB::setReadPreference
 
   -  MongoDB::getReadPreference