The file “welcome.php” can now use the $_GET variable to obtain all the required information which is shown on the address bar. As it does that, all the name fields of the form will automatically be the ID keys in the $_GET array variable.
Welcome .
You are years old!
The use of the $_GET variable results in all data being shown in the address bar which would not be well suited for obtaining user names and passwords. The use of the said variable is practiced for it allows pinpoint bookmarking allowing specific pages (like the user’s information page) that can easily be located with the first few values. The limitation of 100 characters is somewhat limiting but it is very useful in some cases as we will show in future posts.
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The $_POST Variable
The variable is an array of variable names and values that is sent by the HTTP POST method. The $_POST variable is used to collect values from a form with the method=”post”. The information sent from a form through this method is invisible to others and has no limits with concerns to the amount of information to be sent.
This time, as the user clicks on the submit button, the address bar would not display any information looking like:
http://www.samplepage.com/welcome.php
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One of the most small but extremely important aspects of PHP programming that many programmers overlook is the failure to resize images. Of course when we say it’s common sense that websites with smaller images load faster than ones with bigger images, it’s as obvious as saying that the sky is blue.
However, since it is precisely assumed to be “common sense”, it is one of the aspects of PHP programming that is most often not given a moment’s notice. Simply upload the picture, and it’s all done. Which is a terrible disservice, actually, to the website you’re making. People who visit it will most likely be turned off my the long loading times, and with peoples attention span as it is, you’re bound to be shoved aside in favor of a faster loading site.
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The announcement of Sun that they are developing the Zend Platform, is set to revolutionize the internet which is ruled by PHP based applications. Web sites, apps and many more all use PHP as their main platform and what better way to boost it’s reach is the addition of it’s own proprietary platform that would allow developers to use it as if PHP was made for commercial or business applications. Much of the market that Microsoft still holds is on their business development platforms such as the .NET framework which is mandatory for all of their business applications such as those for financial and other uses. The boost would allow more stable use of the PHP language, maximizing the potential for more business. Sun Microsystems, one of the leading proponents of the Zend. It adds capabilities to other development platforms, yes even Microsoft’s to inter-communicate and work together combining the efforts of all the major developers in the world.
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Time to upgrade to PHP version 5.2.8. as PHP 5.2.7. is a security liability:
Due to a security bug found in the PHP 5.2.7 release, it has been removed from distribution. The bug affects configurations where magic_quotes_gpc is enabled, because it remains off even when set to on. In the meantime, use PHP 5.2.6 until PHP 5.2.8 is later released.
The PHP Development Team would like to announce the immediate availability of PHP 5.2.8. This release addresses a regression introduced by 5.2.7 in regard to the magic_quotes functionality, which was broken by an incorrect fix to the filter extension. All users who have upgraded to 5.2.7 are encouraged to upgrade to this release. Alternatively you can apply a work-around for the bug by changing “filter.default_flags=0? in php.ini.
Take out 5.2.7. as soon as possible and use the newest one for security’s sake!
Source
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One of the most important simple functions we use when we work on PHP is the Time and Date functions. It performs two things. The Time () function being responsible for the assignment of each date and time, a number string that is based in seconds. The Date () function meanwhile, is responsible in formatting this number string into a human friendly display. There are also other important functions worth mentioning. The Mktime () function is utilized to generate artificially the time stamp for a certain date and time. It has the same function as the time() but its different because this is used for a particular date not necessarily the present day. In counting down function, there is a simple script that can be used , it called Countdown script.
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??????: content.answers.com
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When you’ve finished studying the learning curbs of PHP5, you will most likely wonder what is in store for PHP development in the near future. Where will this indispensable programming language headed in the next year? As we all know, PHP 5 has been a very significant development for the programming language. PHP5 has simply set the standard of many features that had little support before. Or simply was not focused on. It revolutionized the language, practically. And it really live up to its predecessor, PHP4. PHP5 as major version will be around 3 to 4 years much like PHP4 which was released in 2000. It had undergone a number of important revisions as it moved along. Definitely, PHP5 will see some minor patch releases. it will correct bugs from the original PHP5 . But it definitely will provide us with newest functionalities to use and do things with. So enjoy using your favorite PHP5. It will be here to stay and be helpful to you.
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People who are just starting to learn HTML may hear developers terms such as HTTP header and simply think that it is the same with a header of an HTML document. Big Mistake. The HTML header is anything you write in between the
tags. The HTML header usually contains information about the page. The author provides the info for the client. The HTTP header, otherwise, is information the client and the server provides with each other regarding the transmission process of the document. Think of the HTML header as the date and address written at the top of a business letter, while the HTTP header is the address written on the envelope. They are both addresses, written in two different locations.
The HTTP header contains details about the transaction between the client and server, with slight variations depending on whether it is a request or a response. The header information can be grouped into three different categories. Namely, General, Entity, and Request/Response
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Do you know what if felt like when you’re forgetting something and you promised to remember even just for one day? It felt like not having sessions in your website. Sessions in PHP temporarily saves important data that is needed for browsing the whole site, into the server for future references. Therefore, it will not take any of the user’s memory space. In our school, session is commonly used when the user has to log in first before entering. With session, his username and password won’t have to be displayed in the address bar, or the programmer won’t have to use POST for all of his pages. There are three functions used in PHP for session. Session_start() is used for starting a session and must always be placed before the body tag. It creates a unique id (UID) for the user. Session_unset() removes all of the values stored in the session. Session_destroy() deletes the UID. To store data as a session variable, user $_SESSION[‘variablename*’] and equate it to the value you want to save.
*Can be changed into what the user prefers.
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