Lesson One PHP

Learning PHP, create PHP, how to create a website, learning HTML, MySQL & learn learning specific computer beginners, free, easy & complete with PHP tutorial, HTML tutorial, MySQL, how to create a unique website and online computer Prothelord easily understandable from basic to advanced , plus tips on studying English and light articles of interest to you can be here.

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If you're just starting to learn how to create a website, please review the tutorial available here begins with learning HTML then learn PHP and MySQL the last study, in addition you can also learn the computer, learn computer networking and Internet business even here.

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How to Writing PHP Scripts

Writing PHP scripts always begin with a "smaller (<)" and ending with a "greater (>)" and in writing the PHP script itself, there are four different ways, namely:
<?
PHP Scripts
?>
<?php
PHP Scripts
?>
<script Language="php">
PHP Scripts
</ SCRIPT>
<%
PHP Scripts
%>
Of the four ways before, you can choose which one to use in writing the PHP script but more often used is the way the first and second. In addition, the note is at the end of every PHP script should end with a "semicolon (;)".
Here is an example of writing from the PHP script:

<?php
echo ("Congratulations Learning PHP here");
?>

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Introduction to PHP

Before we discuss PHP, there is one term that we should know beforehand, ie a server side scripting, because PHP is one type of programming languages including scripting of whom the server type. Namely a set of scripts that are processed on the server side, the intention is that there are scripts PHP scripts in a program will be processed on the server computer.

Examples of the programming language that is included in the server side scripting are PHP, ASP (Active Server Pages), Cold Fusion or Perl. And we will learn this time is the programming language PHP.

PHP was created by Rasmus Lerford, the birth of this PHP began in 1994 when Rasmus made a number of Perl scripts to watch anyone who saw the list of his memoirs. Script script is then packed into a tool called "Personal Home Page". From this package the forerunner to the creation of PHP. In 1995, Rasmus PHP/F1 creating two versions. And this version of structured programming can paste the code in the HTML tags and also can communicate with the database.

PHP stands for PHP Hypertext Preprocessor, is a scripting programming language that is placed and processed on the server. The results will be sent to the client that is places where the users using the Browser.

PHP is designed specifically for the formation of dynamic WEB. This means that PHP can form a view according to the latest request. For example you display the contents of the database to web pages.
Advantages of PHP than other programming languages including:
Programming Language PHP is a scripting language that does not do a compilation on its use.
Web Server that supports PHP can be found where the extent of starting the IIS to Apache, with a relatively simple configuration. In a side development easier, because of the many mailing lists and developer who is ready to assist in its development.
When viewed in the conceptualisation, scripting language PHP is the easiest because of the many references available.
PHP is a programming language that is open source means that PHP can be used in various machine operating systems like Linux, Unix, windows, etc. and can be done in run time through the console. Also, PHP can run commands from the system.

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Cheap VPS Hosting

Nowadays, the internet is part of our daily life. This global network has erased the limit of time and place. People all over the world can meet and communicate, have some entertainments and business online. If your need a website, then you will need good web hosting for it.

Web Hosting is an internet hosting services. It provides space on server to be used by their clients. Giving data center for internet connectivity the way web hosting provides the domain. People will be able to have their own website accessible via World Wide Web or well known as WWW. This service is really popular along with the rise of internet era lately. The most important part of having a website is choosing the company providing the service. When you need a hosting to run small medium sized business you can use the cheaper efficient and the appropriate hosting such as Virtual Dedicated Server or VPS hosting. It is easy to configure, install and to purchase.

Joinvps.com provides you with cheap VPS hosting to optimize your site. They know that you need the best host for your web. If your site really needs a good service, then you will need them.

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Filter text in PHP with str_replace

This trick is usually used to filter out comment or message to be displayed normally in the guest book form. For example words - words that included "bad php" after the submit it displayed "good php". Create a still hooked to the web 1.0 I'll try to share what little I know. Perhaps this is one of the few tricks that can be used to filter out comment in php. Let us use the hassle of congenital str_replace function of php itself'll not bother to make their own functions. to consider the function is as follows str_repalce str_replace (the first parameter, second parameter, the third parameter) * The first parameter: this is a word or phrase that will be filtered * The second parameter: this is a substitute word for the first part * The third parameter: this is a word or phrase that will be filtered

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Fun Play with golf

I did not agolf professional players, but I really like the golf course. I need lots of practice to become the best Golfer. To playing golf, we must have any golf equipment. You need the stick, golf ball, and the golf scope. Thirdly it is an important component in The Game of Golf. I want to know more about golf, as well as you. In Germany, all available. Cities in Germany a lot of golf courses. For that you must not hesitate to go there, to spend a long vacation with family and playing golf. To know about golf, you have to practice and learn. There may be many a sites in the Internet about Golf but if you want to know about golfkurs platzreife, golfkurs-platzreife.de is the best place for you. On this site are all available all the needs and your knowledge about golf. Of course learn by doing "make you better class. Prepare yourself to go to enjoy it all. Before leaving prepare your golf equipment. If you are new in golf, Mizuno becomes a good choice for you to take it to the Germans. There do not forget to visit the beautiful lakes and cool. Urlaub Chiemsee is a very good choice for your vacation. Many families, couples and single travelers each year choose to spend their holidays at Lake Chiemsee. A collection of water and wind blowing into your body certainly remarkable effect to your health. Prepare yourself to go play golf in Germany, this course is very enjoyable.

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Self-Referencing

In the Web application often we need self referencing URL to refer path current Script. Marginally this implementation step can through 2 approach, namely apply superglobal $_ SERVER and function getenv().

echo $_SERVER['PHP_SELF']; echo $_SERVER['SCRIPT_NAME']; echo $_SERVER['REQUEST_URL'] echo getenv['SCRIPT_NAME'] echo getenv['REQUEST_URL']

Different with other element, REQUEST_URL will return query string (if founded. For applied inveterate approach is element PHP_SELF.

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array base technique

To make easy using array, be better if we comprehend Array Base Technique must be first. Create Array Array in PHP grouped to become two type, indexed and associative. Array Indexed is array who’s the key like in the form of integer, normally started from 0. Array associative used string as key. You Can Create array with two models. Number one uses language construction array() and square bracket sintax.

$arr1 = array(‘a’,’b’,’c’); print_r($arr1); $arr2[] = ‘a’; $arr2[] = ‘b’; $arr2[] = ‘c’; Print_r($arr2);

Create array associative you must do that with same way. But in here you must specified of base key.

$arr3 = array(‘a’ => ‘A’, ‘b’ => ‘B’, ‘c’ => ‘C’); print_r($arr3); $arr4[‘a’] = ‘A’; $arr4[‘b’] = ‘B’; $arr4[‘c’] = ‘C’; print_r($arr4);

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Manipulation String

Operation and manipulation string is a hot topic for programmer. But in fact, manipulation and operation coverage string very wide and do not seldom base on problem domain which faced. Although that if you have experience about fundamental base, we will found solution of the problem. One correct way to starts operation string is comprehended anatomy and also the characteristic first. String Literal String can be specified by three approach

• single quotation mark
• double quotation mark
• syntax here document (heredoc)

$strl = ‘America’; echo ‘Halo $strl’; echo “Halo $strl”; $str2 = << Sintaks heredoc EOQ; Echo $str2;

Double quotation mark and heredoc make result variable interpolation so that both approach tend to farther out compared by single quotation mark.

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Class

Class is one of fundamental element OOP (Object Oriented Programming). Class can be illustrated as blueprint or prototype what is applied to create object. Definition Class Class name must be descriptive and better always started with block letters. Name of class better also express the position hierarchy and use underscore as hierarchy winnow.

Form FormUpload //For example file location Form/Db/validator.php Form_Db_validator

Class is defined use apply keyword class who’s followed name of class. Definition of class consist two component, that is declaration class and body class. Declaration class is a first row in class. And minimum defined name class. Body defined after name class and between confine streamer { }

//declaration class Class Form { //body class }

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Consistency

Consistency often related to writing standard code program. Of course well founded because writing of consistent code make code program more easily to read and comprehended.. If variable is applied for purpose of similar, better give similar name too. For example, if variable $sum is applied to express an amounts, hence you must to always wear the name. That’s mean don't give different name for purpose of similar, for example $sum, $sumer, $amount. For usage in one block. You can declaration variable with same prefix, for example $sum_data, $sum_max, $sum_min. Though not easy to consistency implementation, we must cope for minimization mistaken of naming.

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Program Code Format

To make easier program code scanning, do not writing of long code in a line. As solution, program code format by elaborating the parts.

// not like it If ($letter == ‘a’ || $letter == ‘I’ || $letter == ‘u’ || $letter == ‘e’ || $ letter == ‘o’) {$vocal = true;} // like it If ($letter == ‘a’ || $letter == ‘I’ || $letter == ‘u’ || $letter == ‘e’ || $letter == ‘o’) { $vocal = true; }

In addition, better always apply space for neatening program

$name = ‘php’; $category = ‘server-side’; $url = ‘http://www.php.net/’;

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Standard coding

Every programming language always give standards rule for made reference programmer. This thing for created program are consistence and uniform. The example is standard name. In programming, a name is applied to relate identity which for declaration. Related/relevant this matter, there are some base order which truly hardly required to produce a program more interesting. Variable name better use a lower case. If the name consist of some words, disjointed with under line (underscore). For example $name or $name_user. Give name of Constanta is suggested to follow order variable except using all block letters. For Example MAX MAX_DATA or SUM_DATA. Name of function better also relate at naming of variable and hardly suggested that to express a verb or action, for example get_data(), set_data(), or print(data).

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What is PHP ?

PHP? Maybe many more question in friends of hearing word PHP. PHP is a script which one with HTML dan stay at server (server side HTML embedded scripting). With this PHP You can create immeasurable application base on the web, start from simple web page until the application of complicated requiring connection to database. Until now, many databases which have been supported by PHP and possibilities will continuously increase. the database is :

• dBase
• DBM
• FilePro
• mSQL
• MySQL
• ODBC
• Oracle
• Postgres
• Sybase
• Velocis

Besides of that, PHP also support connection with protocol IMAP, SNMP, NNTP dan POP3. History PHP PHP first time made by Rasmus Lerdorf in the year 1995. At the moment called FI (Form Interpreted). PHP is a group of script which applied to data form processing from the web. Growth from here Rasmus discharge the source of code and give a name him PHP/FI, at the time elongation from PHP/FI is Personal Home Page/Form Interpreter. With this release of source code become open source, many programmers interesting to follow develop PHP. At November 1997, release PHP/FI 2.0. At this release, implementation on C. On this release also figured extensions modules increasing ability of PHP/FI. In the year 1997, a company called Zend, rewrite PHP become more clean, quick and better. Then at June 1998 the company release new of PHP and give a name PHP 3.0. in the middle of the of 1999, Zend release PHP 4.0. PHP 4.0 is PHP version which at most weared. This version many weared because this versions can be use to build the web application are complex but remain to have a speed of high stabilities and processes. At June 2004, Zend release PHP 5.0. This version is recent version from PHP. In this version, core from PHP experience change of large. In this version also defined by new object-oriented programming model.

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