Hartmut Holzgraefe's Blog: PHP Graphviz Extension
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In this new blog post, Hartmut Holzgraefe talks about his experiences with the Graphviz library and its integration with PEAR.    We've had PHP Graphviz support in PEAR for quite a while but only by passing graph description files to graphviz binaries running in seperate processes and by collection their output files later.   Now it is possible to create graphs by adding nodes, edges and node and edge attributes to a graph within PHP itself.    He's even created a trac site for deonstration and downloading of this new bit of functionality. There's also some documentation in a simple manual on the trac pages as well.
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DevShed concludes their series on using the GD graphics libraries in PHP with thie new article focusing on the use of some of the simple filtering functionality the library has to offer.   In this article I'm going to demonstrate how the GD library can be used to apply some basic graphic filters (yes, like Photoshop, but much simpler) by utilizing the versatility of a brand new function called "imagefilter()". As you'll see shortly, with this function it is possible to reverse, blur and highlight the colors of a determined image, as well as convert it to its grayscale version, among other things.   They use the imagefilter function in a few different examples - altering the colors in an image, working with contrast and brightness and various other filters (like smoothing, embossing, blurring and colorizing).
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Travis Swicegood is teasing us with some output from a script in his latest blog post:   So my free time of late (what there is of it) has been spent on a project that's getting really close to v0.1 release. In other words, its first functional release. If you've ever run a test using the PEAR installer or know what a .phpt file looks like, you might be able to guess what I've been up.   Keep an eye on his blog for more information on his "secret project".
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Paul Jones has posted a very quick note about one of his presentations today:   The slides from my php|works talk are now available as a PDF file. I'm going to try to create an audio version after I get back from the conference.   You can see a summary of Paul's talk (and a list of the others being given) over on the php|architect site.
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Mike Wallner has thrown together some stats for the latest edition of the pecl/http package to test its response performance.   The results surprised me, because it clearly shows that the performance drop for starting the PHP engine and doing the neccessary negotiation to provide caching is not that bad.   There's a chart of the results as well as a full PDF with all of the stats the graph maps out. He includes the legend to make the graph easier to understand.
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Lukas Smith has posted his review of a book from Packt Publishing - "PHP Web 2.0 Mashup Projects: Practical PHP Mashups with Google Maps, Flickr, Amazon, YouTube, MSN Search, Yahoo!"   Duane from Pakt asked me if I would be interested in reviewing a few books for them in my blog. I picked "Mashup Projects" from the list of just released books, since I am interesting in the topic and I am actually going to give a presentation at the internal "PHP Day" we are doing at Optaros in November.   He points out the good (good writing style, well-chosen examples) and the bad (a log list of errors and oversights in the code). He also talks about the contents of the book - the different examples and the final more major project. Overall though, he sees it as a good book, one that would be a good introduction to mashups for PHP developers (if you look past the formatting issues).
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Lorenzo Alberton has posted some updates about the PEAR packages that he maintains to his blog today including MDB_QueryTool, Mail_Queue2, MDB2, and Translation2.   Even if lately I've been coding way more in C/C++ than in PHP, I still keep an eye on PEAR developement: I reckon in the last month I've closed a bug a day, on average. And after my last call for help about my PEAR packages, I'm also pleased to announce that someone did indeed offer a hand. I'm happy to welcome not one, but two new developers!   Each of the items has links to their PEAR homepage and a few quick words on where the package stands (including developers involved or wanting to get involved). He also reminds developers out there that they can help out too if they want to jump in and get into PEAR.
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Over on the Zend Developer Zone today, Akash Mehta has written up  a review of a book from Packt Publishing, "PHP Web 2.0 Mashups" (by Shu-Wai Chow):    As it's title suggests, PHP Web 2.0 Mashup Projects is a demonstration of the various techniques available for developing mashups in PHP. Through a highly practical format, Shu-Wai takes the reader through a series of projects utilising different web services and APIs, while carefully exposing the reader to a wide variety of technologies and data formats.   With careful selection and shaping of language, the book is an extremely effective introduction to the world of mashup development with PHP.    Akash talks about the contents of the book (the different projects it covers) and how the book provides a version useful resource to those just getting into the mashup world - a reference guide to some of the popular data transfer methods/formats out there.
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In a follow-up to a previous blog post, Alexey Zakhlestin shares a few more thoughts on the project and the proper object hierarchy's going for.   actually, I changed it completely 3 times already in my thoughts. I finally "see the light"(tm) and will implement it on a weekend. I think about converting SCGI-part to a simple "driver" and move all http-related stuff to a separate driver-agnostic set of classes. This way, I would be able to implement FastCGI as anther driver without altering applications. If you have any better ideas - let me know.   He also includes a link to another sample application that uses the functionality to create a pie chart (including some benchmarks) with the help of the eZ components framework.
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Latest PHPClasses.org Releases:Adventure-(PHP-)FrameworkOhloh APIdm.KittenAuthuserManagerImage TransformSimple error handling classPHP Tree GraphPHP5 Calendarb3rtCSVReaderb3rtCSVWriterCRUD Class
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Jim Plush has posted an offifical release announcement about his latest contribution to the PHP community - a debugging tool combining PHP (through the myBIC framework) and the Firefox FireBug extension.   I put together a couple pieces of technology to give the PHP community a debugger/profiler that should make life easier in the "web2.0" world. Are you tired of echo'ing print statements in your ajax calls? Writing to log files? Firing up big ol debuggers just to see what the value of some array is? Well look no further than the new MyBic PHP Debugger.   The tool is a smaller part of his larger MyBIC framework and can do things like writing log files, echo information back out to the screen, and communicate information back out to the Firefox user. There is a standalone version of FireBug that will be posted for those that don't want to have to install an entire framework to use it.   Keep an eye out (here and on his blog) for the links to the release when it's posted. In the meantime, you can check out a screencast [mov] of the package in action or just the screenshots in the blog entry.
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PHPBuilder has another excerpt posted from the book "PHP 5 in Practice" from Sams Publishing. It takes a quick look at a method to simulate graphical charts with some XHTML and CSS tricks (and PHP's help).   When you need to present data in a chart on a web page, it is often worthwhile to generate graphical charts. This method is covered later in Section 18.4, "Creating a Graph/Chart Library"; however, sometimes for a quick chart CSS can suffice. Listing 9.4.1 presents a function that creates a visual chart of data using CSS and XHTML only.   You can find the code they're talking about for "Listing 9.4.1". They explain it briefly, but it's a quick "here's what it looks like" and less of a "here's the logic behind it" kind of post. Never the less, it's still quite useful.
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Sebastian Bergmann has posted the results of some benchmarking on the compilation he's done on the branches of PHP from version 3.0 all the way up to 5.3-CVS.   As people keep asking me for an update to my previous benchmarks (PHP / GCC / ICC Benchmark, PHP 5.1 / GCC Benchmark (Update), and PHP 5.1 Performance, I quickly ran a new benchmark today.   He rendered the results out into a series of charts defining the number of total seconds taken for the compile and how long each of the components took. It's impressive to see how much of a jump there was between the 3.0 series and 4.3.   He also includes his compile settings (and machine information) as well as the numbers for the results if you'd like to graph them out yourself.