duancong2965 2016-10-05 21:38
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如何在php中使用'使用',导致致命错误

I have learned that I need to use name space in php like I have used in my following code but I'm getting Fatal error: Trait 'SuperClosure\Serializer' not found I have used it like this:

use SuperClosure\Serializer;
public function set( $key, $value )
   {
    $key = strtolower( $key );      
    $serializer = new Serializer();
    $serialized = $serializer->serialize($value);



    $_SESSION["HA::STORE"][$key] = $serialized;
   }

where I am wrong ? please tell me the correct way to use it?

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  • duanke6249 2016-10-05 21:52
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    You need to use namespaces before declaring class because word use point to Trait mechanism (PHP: Traits). Example of namespaces and traits in class:

    <?php namespace Foo\Bar;
    
    /* I am telling to PHP compiler that class
     * Serializer has different path than class Baz.
     */
    use SuperClosure\Serializer;
    use SuperClosure\Shortcuts;
    
    class Baz {
        /* Now I used Trait. That should include
         * methods defined in trait Shortcuts
         */
        use Shortcuts;
    }
    

    Also I recommend read more about namespaces and importing them.

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