在連接多個不同數據庫時，需要寫多個連接，爲了簡化該操作，可以使用該基類，不同的數據庫只要建立好相對應的類繼承該類，就可以使用ORM模型進行操作了。
<code class="sourceCode php"><span class="kw">class</span> singletonInstance { <span class="kw">protected</span> <span class="kw">static</span> <span class="kw">$instances</span> = <span class="ot">[];</span> <span class="kw">protected</span> <span class="kw">static</span> <span class="kw">$table</span> = <span class="kw">null</span><span class="ot">;</span> <span class="kw">protected</span> <span class="kw">static</span> <span class="kw">$connection</span> = <span class="kw">null</span><span class="ot">;</span> <span class="kw">public</span> <span class="kw">function</span> <span class="fu">__construct</span><span class="ot">()</span> { <span class="kw">if</span><span class="ot">(</span>!<span class="fu">isset</span><span class="ot">(</span><span class="kw">static</span>::<span class="kw">$instances</span><span class="ot">[</span><span class="kw">static</span>::<span class="kw">class</span><span class="ot">]))</span>{ <span class="kw">if</span><span class="ot">(</span><span class="fu">is_null</span><span class="ot">(</span><span class="kw">self</span>::<span class="kw">$table</span><span class="ot">)</span> || <span class="fu">is_null</span><span class="ot">(</span><span class="kw">self</span>::<span class="kw">$connection</span><span class="ot">))</span> { <span class="kw">throw</span> <span class="kw">new</span> \<span class="kw">Exception</span><span class="ot">(</span><span class="st">'not defined property'</span><span class="ot">);</span> } <span class="kw">static</span>::<span class="kw">$instances</span><span class="ot">[</span><span class="kw">static</span>::<span class="kw">class</span><span class="ot">]</span> = <span class="kw">DB</span>::connection<span class="ot">(</span><span class="kw">self</span>::connection<span class="ot">)</span>->table<span class="ot">(</span><span class="kw">sel<span>！本文来源gaodai#ma#com搞*!代#%^码网5</span><pre>搞gaodaima代码
f::$table); } } public static function getDB() { return static::$instances[static::class]; }}
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转载请注明原文链接：laravel連接多個不同數據庫的單例類
转载请注明原文链接：laravel連接多個不同數據庫的單例類
