Category Archives: PHP Development

History of the PHP date timezone settings warning

Now with the newborn elefant PHP 7 in the herd, there is a lift on the date timezone settings warning: it has just been removed. That means, it’s now that you need to take care in the server’s configuration that … Continue reading

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Linting PHP Files in Parallel on Travis

With PHP 7 around the corner here is a small tip how you can at least lint the code in your project to be PHP 7 syntax compatible. That allows you to easier obtain forward-compatible PHP code with ease. So … Continue reading

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The SimpleXMLElement Magic Wonder World in PHP

PHP’s Simplexml ships with a lot of magic to simplify access to an XML documents element and attribute node values. Some criticize this and suggest to use the DOM library instead. The DOM library on the other hand, even it … Continue reading

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Composer Clear Cache

It’s one of the best kept secrets of popular PHP dependency manager Composer: How to flush composers cache. You normally don’t need it, however if you create some composer.json and you want to put it to a test, this can … Continue reading

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Some nice line-up for the know your language department: PHP turtles – Turtles all the way down.

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XPath Null Byte Injection in PHP

Back in July this year, in Mitigating XPath Injection Attacks in PHP I was writing about how to properly quote a string in PHP’s Xpath 1.0. The code presented there was based on the assumption that the resulting expression is … Continue reading

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Mitigating XPath Injection Attacks in PHP

PHP has two libxml based extensions that allow to execute XPath 1.0 expressions: DOM (by the DOMXPath class) and SimpleXML (with its xpath() method). Both extensions are prone to XPath Injection Attacks, a common attack form. Albeit all this, and … Continue reading

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SimpleXML and JSON Encode in PHP – Part III and End

The previous two parts (Part I; Part II) did outline PHP’s standard behaviour when JSON encoding a SimpleXMLElement with json_encode(). As outlined this does not always fits the encoding needs and for some potential problems some workarounds have been showed. … Continue reading

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SimpleXML and JSON Encode in PHP – Part II

In the previous post (Part I) I was giving a little overview for common woes turning a SimpleXMLElement into JSON when XML structural information is available that JSON is not capable to encode easily. The explanations given there were intended … Continue reading

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SimpleXML and JSON Encode in PHP – Part I

With SimpleXMLElement it is often easy and looks like a very quick way to turn some XML into JSON. But not everything in PHP that has an easy interface works out of the box. In this three part series I’ll … Continue reading

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The Greatest PHP Value

Just two days ago I asked a PHP-quiz-question in the chatroom on Stackoverflow, something along the lines: PHP: Which one is greatest? PHP has a comparison operator to compare if one value is greater than the other (>). Which one … Continue reading

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Late Static Bindings in PHP Callbacks

No idea if this is ever useful, but just found this not documented in the PHP manual so far (and the Callbacks entry looks already chaotic so I don’t edit it right now): You can write callbacks of static class … Continue reading

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SimpleXML Type Cheatsheet

A SimpleXMLElement can represent many different things, from an element, to a list of attributes or childelements. Sometimes it’s good to know how to find out, especially with the magic the extension comes with. The following is a table with … Continue reading

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PHP Autoload Invalid Classname Injection

There are many ways to attack an application, many are working by injecting some malicious data hoping to trigger a deserved action in the end. Most of these are possible when input data is not properly sanitized. This can have … Continue reading

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Debug with Xdebug on the Commandline with Phpstorm and Git Bash

Enable Phpstorm Xdebug listening: Press the listen button inside Phpstorm to actually listen: To disable Phpstorm Xdebug processing in Bash again: This (PHPSTORM) is the default Phpstorm IDE-Key. You don’t need to disable listening after the variable is unset. Should … Continue reading

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Getting N Random Elements out of an Iterator – RandomIterator

Considering there is an Iterator or Traversable with an unknown number of elements, I wondered if it is possible to get one or more random iterations out of it.

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Prepared Statements

In Programming With Anthony – Prepared Statements (by Anthony Ferrara; 12 Dec 2012) the author needs only two minutes and 17 seconds (Youtube Video) to explain *Prepared Statements*. Worth to watch. See as well the Playlist of Programming With Anthony … Continue reading

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Where is your Vision Jeff?

In the The PHP Singularity no-one less than Jeff Atwood tried to put something on the Meta-Level I was yet not able to properly grasp. Some point he makes is clear to me, he does not want to do “Yet … Continue reading

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PHP MVC with Tom Butler

In the PHP chat a link got passed around (see “Deploying MVC on the web” below) and I thought it’s worth to link the multiple MVC related articles by Tom Butler. He is one of those persons who actually leave … Continue reading

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The “Missing” Patterns of the PHP Manual

Gladly some pattern code has been removed from the PHP Manual. Not so gladly, it’s just gone, including user comments. The not so good part of the story is, that the two patterns that were given in the manual page … Continue reading

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