Tokenizer
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PHP手册

Tokenizer 函数

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Tokenizer
在线手册：中文 英文
PHP手册
PHP手册 - N: Tokenizer 函数

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lists at 5etdemi dot com (23-Jul-2005 09:33)

The tokenizer functions are quite powerful. For example, you can retrieve all of the methods in a given class using an algorithm like:

for each token:
if token is T_FUNCTION then start buffer
if buffer is started then add the current string to the buffer
if token is ( stop buffer

And the great thing is that the class methods will have the right case, so it's a good way to get around the limitations with get_class_methods returning lowercase method names. Also since using a similar algorithm you can read the arguments of a function you can implement Reflections-like functionality into PHP4.

Finally you can use it as a simpler method of extracting Javadoc out of a class file to generate documentation. The util/MethodTable.php class in AMFPHP (http://www.amfphp.org) uses the tokenizer functions to create a method table with all of the arguments, a description, return type, etc. and from that method table it can generate ActionScript that matches the PHP, but it could also be fitted to generate JavaScript, documentation files, or basically anything you put your mind to. I can also see that this could be the base for a class -> WSDL file generator.