English | 2010 | ISBN: 0981034519 | PDF | 192 Pages | 5.7 MB
Despite all the advancements in web APIs and interoperability, it’s inevitable that, at some point in your career, you will have to “scrape” content from a website that was not built with web services in mind. And, despite its sometimes less-than-stellar reputation, web scraping is usually an entire legitimate activity-for example, to capture data from an old version of a website for insertion into a modern CMS. This book, written by scraping expert Matthew Turland, covers web scraping techniques and topics that range from the simple to exotic using a variety of technologies and frameworks: Understanding HTTP requests The PHP HTTP streams wrapper cURL pecl_http PEAR:HTTP Zend_Http_Client Building your own scraping library Using Tidy Analyzing code with the DOM, SimpleXML and XMLReader extensions CSS selector libraries PCRE pattern matching Tips and Tricks Multiprocessing / parallel processing
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