There's been some talk floating around about a proposed additional syntax for creating arrays in PHP. Brian Moonsums it up nicely in a new post to his blog.
So, I was asked in IRC today about the proposed short array syntax for PHP. For those that don't know, I mean the same syntax that other languages (javascript, perl, python, ruby) all have. [...] It just feels like a good addition to the language. It is common among web languages and therefore users coming into PHP from other languages may find it more comfortable.
He compares it with other data type creation in PHP (you don't call int() to make an integer, so why call array() to make an array). However, according to a post from the internals mailing list, we might not be seeing this any time soon.
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Secunia has released an advisory for PHP today related to an issue caused by an integer overflow that could allow for bypassing of security of an application.
A weakness and a vulnerability have been reported in PHP 5, where the vulnerability has unknown impact and the weakness can be exploited by malicious, local users to bypass certain security restrictions.
The issue is caused by issues with the chunk_split and realpath functions that can lead to a bypass of the open_basedir restriction on a server.
The issue is marked as "moderately critical" and it is suggested that users update to PHP 5.2.3 to correct the issue.
According to this new post on the MySQL Performance Blog, PHP has a bit of an issue when it comes to working with integers.
Until recently I thought that currently popular scripting languages, which mostly evolved over last 10 years or something, must allow for easier portability across different platforms compared to ye good olde C/C++.
However, PHP just brought me a new definition of "portable" - and that was when working with... integers.
He points out that PHP isn't able to correctly handle unsigned integers ("and converts values over 2^31 to signed"). He goes on to talk about how this differs between platforms too (32 vs 64 bit) and some of the research he did to find out just what was going on (including some code examples to illustrate the point).
The Hardened-PHP project has just released another advisory about core PHP functionality, specifically in the unserialize function when dealing with arrays.
The PHP 5 branch of the PHP source code lacks the protection against possible integer overflows inside ecalloc() that is present in the PHP 4 branch and also for several years part of our Hardening-Patch and our new Suhosin-Patch.
It was discovered that such an integer overflow can be triggered when user input is passed to the unserialize() function.
You can get the full details from this advisory release including a recommendation to patch the installation until it is corrected in the current distribution.
DevShed has the second part of their "Building a PHP5 Form Processor" series posted today - Coding the Form Validator Module. It looks at how to construct a set of functions that will check the data inputted to ensure it exists and correct/valid.
In this second part of a three-part series, we take up the topic of server-side validation. By the time you finish this article, you'll have the general guidelines for how to build a form validating class. You'll use some PHP built-in introspection functions, along with regular expressions, to assist you in building this class.
They create several functions, including validateEmpty, validateInteger, validateNumber, validateRange, and validateEmail. Each one (obviously) serves their own purpose, and some are more complex that others (validating an integer versus a valid email address), but they walk you through each, showing you plenty of code and explainations along the way...
