Browsing articles in "PHP Tutorial"

What is the best way to access a database from PHP?

Mar 12, 2012   //   by phpfreelancer.biz   //   Blog, PHP Tutorial  //  No Comments

choose the MDB2 database abstraction layer from PEAR – it provides a nice, abstracted method to deal with the database. I recommend it, since it allows you to write portable code which can be ported to a different database server without many changes required (for a basic script, just changing the connect call is likely to be sufficient). It is a merge of the old DB and Metabase abstraction layers (DB is still supported for bugfixes, but has been superceded by MDB2). Read more >>

What are the best practices for avoiding xss attacks in a PHP site

Mar 12, 2012   //   by phpfreelancer.biz   //   Blog, PHP Tutorial  //  No Comments

have PHP configured so that magic quotes are on and register globals are off.

I do my best to always call htmlentities() for anything I am outputing that is derived from user input. Read more >>

How can I force users to access my page over HTTPS instead of HTTP?

Mar 12, 2012   //   by phpfreelancer.biz   //   Blog, PHP Tutorial  //  No Comments

You could do it with a directive and mod_rewrite on Apache: Read more >>

Work with PSDs in PHP

Mar 12, 2012   //   by phpfreelancer.biz   //   Blog, PHP Tutorial  //  No Comments

I was recently asked to come up with a script that will allow the end user to upload a PSD (Photoshop) file, and split it up and create images from each of the layers. Read more >>

report generation on php

Mar 12, 2012   //   by phpfreelancer.biz   //   Blog, PHP Tutorial  //  No Comments

one of the most frequent requests i get is to create XY report for YZ App. This apps are normally built on php, so far i have manually created most of this reports, and while I enjoy the freedom of building it like i want, it usually becomes pretty tedious to calculate subtotals,averages, exporting to different formats etc Read more >>

How do I rotate an image at 12 midnight every day?

Mar 12, 2012   //   by phpfreelancer.biz   //   Blog, PHP Tutorial  //  No Comments

I need to rotate an image at 12 midnight every day from a group of 5-10 images. How can I go about doing this with javascript or jquery or even php? Read more >>

Flip an Image horizontally

Mar 12, 2012   //   by phpfreelancer.biz   //   Blog, PHP Tutorial  //  No Comments

I need to flip an image so that a character faces in the right direction. This needs to be done “on the fly’ as they say.
Read more >>

Tools to test/debug/fix PHP concurrency issues

Mar 12, 2012   //   by phpfreelancer.biz   //   Blog, PHP Tutorial  //  No Comments

I find myself doing some relatively advanced stuff with memcached in PHP. It’s becoming a mental struggle to think about and resolve race conditions and concurrency issues caused by the lock-free nature of the cache.
Read more >>

can I get PHP to stop replacing ‘.’ characters in $_GET or $_POST arrays?

Mar 12, 2012   //   by phpfreelancer.biz   //   Blog, PHP Tutorial  //  No Comments

PHP lets you at the raw input stream, so you can do something like this:

$query_string = file_get_contents('php://input');

Read more >>

What XML parser do you use for PHP?

Mar 12, 2012   //   by phpfreelancer.biz   //   Blog, PHP Tutorial  //  No Comments

SimpleXML and DOM work seamlessly together, so you can use the same XML interacting with it as SimpleXML or DOM.
Read more >>

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