Php basics

1. The Tools
2. LAMP or WAMP
3. Other Web Application Tools
4. Download and Install WAMP server –
MySQL root password, phpMyAdmin
5. Creating a database, securing the
database
6. Uploading data into the database
7. Simple database lookup with PHP

HTTP
Client
HTTP Server
(Browser)

Scripting
Engine

Back-End Server
(Usually DBMS)

 LAMP: Linux, Apache, MySQL, PHP
 WAMP: Windows, Apache, MySQL, PHP
 Other databases: POSTGRESQL,
Firebird
 Other scripting engines: Python, Ruby,
Java/JSP, C#/.Net, Perl,
 Web Frameworks: Struts, .Net AJAX,
Cold Fusion, Symfony, Django, Zope,
Rails, Chisimba

 Download WAMP
 Double-click file to start the installation
 Provide info, be careful with MySQL root
password – write it down, should be a
strong password
 MySQL Admin tools:
 mysql.exe
 MySQL Administrator
 Phpmyadmin
 Toad for MySQL
 MySQL Workbench
 Locate your WWW and MySQL data
directories (usually c:wampwww and
c:wampbin...)

 Provide login credentials for MySQL
 Select the database to work with
 Connect to database
 Create query(or other SQL command)
string
 Execute query and save results set
 Build table of results
Table heading
Table body
Table footer
 Close database connections

 Validation of user input
 Security measures – remove dangerous
code
 Display results using multiple pages for
large result sets
 Manager user privileges for maximum
security

<?php
$dbhost = 'localhost'; //MySQL server name
$dbuser = 'ex1'; //User name to be used
$dbpass = 'ex12010'; //User password
$conn = mysql_connect($dbhost, $dbuser,
$dbpass) or die ('Error
connecting to mysql');
$dbname = 'example1'; //database name
mysql_select_db($dbname, $conn); //Connect
to database
?>

$para=$_POST[„city']
$queryx1= "SELECT sem, code, title
FROM courses
WHERE sem =' $para'"

 $result = mysql_query($queryx1);

 Header Columns: Country, City, Postal
Code
<table>
<tr>
<th> Country</th><th>Postal Code
</th><th> City</th>
</tr>

 Loop through the rows and use records to
construct the rows:
<?php
while ($row = mysql_fetch_assoc($result)) {
print "<tr><td>$row[„country']</td>";
print "<td>$row[code]</td>";
print "<td>$row[city]</td></tr>";
}
} ?>
</table>

//fetch tha data from the database

while ($row = mysql_fetch_array($result))
{

print("<tr><td>".$row[0]."</td><td>".$row[1].
"</td><td>".$row[2]."</td></tr>“); //display
the results one table row at a time
}

 Helps prevent unintentional database
corruption

<?php
</table>
mysql_close($conn);
?>

1. Install WAMP server or other Apache version that
includes PHP and MySQL
2. Create a database in MSQL and a table to fit the Courses
data supplied.
3. Import the Courses data into the table
4. Create a user with limited privileges over ONLY the new
database you have created
5. Create a web page with a form to be used for searching
A
the database. Form “action” field should match the name
of the PHP script.
6. Create the PHP script to process the form.
7. Store the web page and PHP script in WWW directory.
8. Test the scripts ensuring database name, user name,
password and so on are correct.

Php basics

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