The tokenizer functions provide an interface to the PHP tokenizer embedded in the Zend Engine. Using these functions you may write your own PHP source analyzing or modification tools without having to deal with the language specification at the lexical level.
See also the appendix about tokens.
要编译本扩展模块无需外部库文件。
Beginning with PHP 4.3.0 these functions are enabled by default.
For older versions you have to configure and compile PHP with
--enable-tokenizer
. You can disable
tokenizer support with --disable-tokenizer
.
PHP 的 Windows 版本已经内置该扩展模块的支持。无需加载任何附加扩展库即可使用这些函数。
注意: Built-in support for tokenizer is available as of PHP 4.3.0.
When the extension has either been compiled into PHP or dynamically loaded at runtime, the tokens listed in 附录 R are defined as constants.
Here is a simple example PHP scripts using the tokenizer that will read in a PHP file, strip all comments from the source and print the pure code only.