26238Fluent Interfaces in PHPhttp://www.zend.com/zend/tut/feedback.phpFluent Interfaces is not a new programming construct, in fact many of you may be doing it without knowing it?s name. In other languages it is commonly known as ?chaining?. However, PHP developers have not been able to use them until PHP 5. Now with PHP 5 and the ability to directly dereference an object, PHP developers can build objects using fluent interfaces.PHP > Tips and Tutorials > Form ProcessingOct 15, 2006
This tutorial has emphasis on processing PHP forms with security in mind! There are too many tutorials out there that rely on PHP's notorious register_globals setting activated with very little or no form input validating. Proper validation of form input data is the most important step in protecting your form from hackers and spammers!
If you've been on the web at all, you've gone through multipart forms, where you fill out, let's say, section one, click submit, and fill in section two, etc.. This makes sense from dividing the forms into chunks, controlling the amount of information received, and also for verfication. If we want the user to set up an account with us, we might want to make sure that the username and password they select are unique before we have them fill out much else.
The HTML markup language has build in codes to provide forms. In forms the user can input fields fill out, in text fields of several lines text enter, from lists of entries selects and so forth.If the form is filled out, the user can click on a Button, in order to process the form. The form contains special tags to indicate what happens with the data of the filled out form. For example send the data by E-Mail or process the data with a CGI program on the server.Generally, the major problem is the form validation.
In the last exciting episode of the PHP Phanatics, we explored the inner workings of PHP's unique $GLOBALS array. Several sharp-eyed readers pointed out a bug in the script dumping the contents of the $GLOBALS array. If an array element was itself an array, the display listed that fact rather than the contents of the component array. The displayed line looked like:
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