PHP namespace before you do space wedding photo album namespace album name QQ Space album Life

Today even the database encountered a problem, such as new PDO() class not found the error will appear, generally our own class to write a good automatic loading is no problem, but this is the PHP built-in function, how to do? Automatic loading is also not loading AH.

Consider 1: Add a layer, write a PDO yourself, then encapsulate each method, call the PDO in the clear space, and the PDO calls the built-in PDO.
Conclusion: No problem solved at all, the built-in PDO call, to be able to invoke direct use Ah!
Consider 2: Write a function in a file using a procedure-oriented method, call back a PDO object later, and then introduce the file
Conclusion: It can be used, but it's ugly, and the style is weird.
Consider 3: Dig graves and find the built-in PDO namespace.
Conclusion: Perfect, the namespace is "\"

PHP's built-in functions and objects are all in the default global space, and all namespaces that are not using the namespace declaration namespace are in the global space.

'). addclass (' pre-numbering '). Hide (); $ (this). addclass (' has-numbering '). Parent (). append ($numbering); for (i = 1; i <= lines; i++) {$numbering. Append ($ ('

'). Text (i)); }; $numbering. FadeIn (1700); }); });

The above describes the PHP namespace before what to do, including the namespace, PHP content, I hope the PHP tutorial interested in a friend helpful.

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