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                            ## PHP支持哪些數據庫
PHP通過安裝相應的擴展來實現數據庫操作，現代應用程序的設計離不開數據庫的應用，當前主流的數據庫有MsSQL，MySQL，Sybase，Db2，Oracle，PostgreSQL，Access等，這些數據庫PHP都能夠安裝擴展來支持，一般情況下常說的LAMP架構指的是：Linux、Apache、Mysql、PHP，因此Mysql數據庫在PHP中的應用非常廣泛，我們會在本章中簡單的了解Mysql的操作方法。
~~~
<?php 
if (function_exists('mysql_connect')) { 
    echo 'Mysql擴展已經安裝';
}
~~~
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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