doulin6088 2011-09-14 06:03
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从PHP建立Oracle DB连接而不进行重复连接

I currently make an Oracle connection like this:

$c = oci_connect('username', 'password', 'host');

which I use my oci8 queries like this:

$s = oci_parse($this->c, $query);
oci_execute($s);

However, every time I want to query, I create a new connection i.e. I do $c = ... many times. This is a silly thing to do. What is the correct or best way to make a single Oracle connection and use that connection from anywhere in the program? I can make $c I global variables but global variables aren't nice.

Thanks very much :).

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  • douqingnao9246 2012-02-02 19:54
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    Couldn't you use a static variable, like this...

    class DbHandler {
        private static $_mOciHandle;
    
        private function __construct() {}
    
        GetHandle ($u, $p, $dsn, $charset) {
            if (!isset(self::$_mOciHandle))
                self::$_mOciHandle = oci_connect ($u, $p, $dsn, $charset);
            return self::$_mOciHandle;
            }
    }
    

    It still renders your database handle (indirectly) global, but you only ever have one connection, and this way it's protected from "accidental" update.

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