Home >Backend Development >PHP Tutorial >A brief analysis of how to use various PHP syntax parsing functions_PHP Tutorial
A brief analysis of how to use various PHP syntax parsing functions_PHP Tutorial
- WBOYOriginal
- 2016-07-15 13:31:59886browse
There seems to be this kind of parsing class in
pear. In addition, if you search for PHP parsing online, you can also find various self-written PHP parsing XML classes. .
DOM function is the Document Object Model function, which is a relatively low-level XML operation. It is the same as C#'s XML operation. Whether writing or reading an XML requires writing a lot of code.
The XML parser (sax) in the PHP syntax parsing function is a high-level function library. You need to build three functions yourself, and you must directly use these three functions to return data, which requires strong logic. When processing xml with different structures, these three functions must be re-constructed. This is where many users find it uncomfortable.
The expert then wrote his own XML operation class, which is usually a combination of sax and DOM to solve the shortcomings of DOM and SAX and adapt to his own needs.
The analysis of xml is mainly based on sax and dom methods. The sax method is highly efficient, and the dom method is more intuitive and more popular now.
PHP syntax parsing function in the php library
dom / dom xml / simple xml several libraries are based on dom
xml parser is based on sax
PHP's XML syntax parsing function is a set of XML general interface functions based on expat. DOM XML converts XML documents into objects through expat, so that users can operate XML documents in an object manner. SimpleXM provides an efficient way to retrieve xml documents. Others include xslt, xpath and other methods.
You can choose one or several PHP syntax parsing functions according to your needs. There are no certain rules.