Tài liệu FOCUS ON DATA XMLPULL AS AN ALTERNATIVE TO DOM & SAX doc

[...]... Code Directory xmlpull 29 FEATURE XMLPull: An Alternative to SAX and DOM the manipulation of data with SAX too involving If so, it will pay to take a closer look at XMLPull Parsing XML with XMLPull reflects the organization of data structures and therefore code written to use the XMLPull parser is much easier to maintain State information is kept, naturally, on the parser’s stack, as a consequence... simpler, more standard and more extensible interface to handle large documents than the existing SAX version It should be noted that XMLPull has no notion of callbacks Think of XMLPull as defining a special kind of iterator that delivers an XML document’s components to you, one at a time It is totally up to you to decide when you’re done with the current component, and ready to move to the next one The parser... internationalization framework Internationalization and localization are substantial topics, and are not the focus of this article However, getting all the various components of your web application environment to place nicely together using UTF8 is a necessary step before you can even try internationalizing your site So this article will be of interest to those who only want to handle the occasional nonEnglish... XML (the logical connection of structure and data within a document) remains unbroken—there is no serious Content Management System that doesn’t offer, at least rudimentary, XML support in one form or another The dominant APIs for XML processing are DOM (Document Object Model) and SAX (Simple API for XML), two APIs that focus more on tags and less on data The DOM API creates an XML document in a treelike... sitestats database, and the sitevisits table; it contains a screenshot taken from PHPMyAdmin—a useful tool for managing MySQL databases A user wishing to recreate this site counter tool will need to install MySQL on the server and will need to create the database instance and table required to run the code Summary I have intended to provide some insight into how to develop a simple and useful bar-chart based... we locate where to begin entering data into the database table This is accomplished by reading the hitcounter.dat file and comparing the maximum number of visits last recorded in the database with the associated visit data contained in the data file When the two are equal, the point has been reached in the data file wherein the last entry was made to the database Any data contained beyond this point... $reader->moveToNextAttribute(); 19 } 20 21 echo “\n”; 22 break; 23 } 24 } 25 26 ?> 33 FEATURE XMLPull: An Alternative to SAX and DOM Everything’s Different with PHP 5 In PHP 4, XML support was mainly SAX based, and was implemented with the domxml extension Later, the xslt extension (with Sablotron as the backend) was added During the PHP 4 life cycle, additional features like DTD validation were added to. .. Stocker Based on libxml, this implementation has what it takes to develop to a powerful alternative to SAX- Parser xmlReader is like SAX in that it does not load the complete document into memory and it is only suitable for reading XML (no writing) Remember, the essential difference between SAX base parsers, and those centered around an XMLPull implementation is: SAX based parsers push events to the user,... http://www.pdflib.com/ For it to work with UTF-8 data, you need to use it with a UTF-8 compatible font The commonly used Windows TrueType fonts—Arial, Times New Roman, and Courier New—are Unicode compliant However, that doesn’t mean they can display any Unicode character They are fine for English and most Central and Eastern European languages For more on this, see the Font section of Alan Wood’s Unicode Resources... Word, it’s easy to take a Unicode document and save it as an RTF file It’s also not difficult to use a tool like RTF File Generator (available at http://www.paggard.com/projects/rtf.generator/) to generate RTF files using PHP, as long as the source data does not include characters from multiple languages It turns out to be quite difficult to use PHP to generate an RTF file when the source data is UTF-8 . can be used to create, alter and drop database entities and insert data into a database. Reverse engineering database schemas from existing databases is also. “</font></td>”; 197 echo “<td align=right><font face=arial color=blue “ 198 . “size=2>” . $dbElements[$i][2] . “</font></td>”;