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The document summarizes a training presentation on PHP with MySQL. It begins with an introduction to the Center for Electronic Governance (CEG), which was established in 2006 by the Government of Rajasthan to oversee technical education. The presentation then covers the history of PHP, what PHP is, its features, code syntax, components like variables, operators, arrays and functions. It discusses advantages of PHP like being open source and supporting multiple databases. Finally, it provides an overview of why MySQL is a popular database to use with PHP before describing some basic MySQL queries.
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- 1. Govt. Engineering College AJMER A training presentation on : PHP with MySql Submitted to : Submitted By : Mr. Vinesh Jain Ajeet Kr. Jhajharia 09CS04
- 2. Content : Company Profile History of php What is php ? Features of php php code look like Php Contents Advantage of php MySql
- 3. CEG : Center for Electronic Governance CEG is an autonomous body of the Govt. of Rajasthan under the department of technical Education. Foundation stone of CEG was laid down on 8th December 2006 at Khaitan Polytechnic College Jaipur by Shri Ghanshyam Tiwari and Shri Vasudev Devnani, Hon’ble Ministers for Technical Education.
- 4. History of php : Created by Rasmus Lerdorf in 1994 Originally a set of Perl scripts used by Lerdorf to show off his résumé.
- 5. What is php ? php stands for “Hypertext PreProcessor” . An open source language . php is a server-side scripting language . php is used to generate dynamic web pages. php code can be embedded within an HTML page.
- 6. What is php ? „ViewSource‟ in browsers does not display the php code . phpsupports many popular databases such as MySql , Oracle and many more.
- 7. Features of php : Very Efficient :– Can serve millions of hits per day. Database Integration :– Supports many databases, such as MySql and Oracle. It’s Free :– Available on http://www.php.net Easy to Learn – Very similar in syntax to C and C++ php uses both procedural and object oriented paradigms.
- 8. php codes look like ? Each PHP script must be enclosed in the reserved php tag . <?php … ?>
- 9. php Contents: Variables Constant Operators Array Functions
- 10. Variables : Variables are used for storing values, such as numbers, strings or function results, so that they can be used many times in a script. PHP variables must begin with a “$” sign Php variables are case-sensitive ($Sign!= $sign != $siGn) ◦ Certain variable names reserved by PHP like form variables ($_POST, $_GET), server variables
- 11. Operators : Arithmetic Operators (+,-,*,/) Example:- $total=$a+$b; Assignment Operators(=) Example:- $t=$a+$b; Comparison Operators (<, <=, >, >=) Logical Operators (&&. ||,!)
- 12. Arrays: <?php $arr = array("somearray" => array(6 => 5, 13 => 9, "a" => 42)); echo $arr["somearray"][6]; // 5 echo $arr["somearray"][13]; // 9 echo $arr["somearray"]["a"]; // 42
- 13. Functions : Functions must be defined before then can be called Function headers are of the format function functionName($arg1,$arg2,………$argn) ◦ Note that no return type is specified
- 14. Function Example: <?php function mul($arg1, $arg2) { $arg2 = $arg1 * $arg2; return $arg2; } $result = mul(12, 3); // Store the function echo $result1; // Outputs 36 ?>
- 15. Advantage of php : Open source Procedural / Object Oriented programming Supports wide range of Databases Easy to learn Portable
- 16. Why MySql ? Most popular open-source DB Fast, reliable, scalable, etc. Integrated with common applications Based on SQL Standard ◦ Probably at least as compliant as other DBs
- 17. MySQL Query Basics mysql_connect() :- This function returns the connection on success, or FALSE and an error on failure. mysql_select_db() :- The mysql_select_db() function sets the active MySQL database.
- 18. MySQL Query Basics mysql_query() :- The mysql_query() function executes a query on a MySQL database. mysql_num_rows() :- The mysql_num_rows() function returns the number of rows in a recordset. mysql_fetch_array() :- The mysql_fetch_array() function returns a row from a recordset as an associative array and/or a numeric array.
- 19. Project Snapshots Project: Student Information System