PHP Archives - https://mitindia.in/tag/php/ Sat, 26 Nov 2016 07:25:40 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://mitindia.in/wp-content/uploads/2023/03/cropped-android-chrome-512x512-1-32x32.png PHP Archives - https://mitindia.in/tag/php/ 32 32 PHP-Examples https://mitindia.in/php-examples/ Thu, 30 Jun 2016 08:13:10 +0000 http://www.mitindia.in/?p=191 Here are some basic programs using PHP 1. Arithmetic operation program using PHP <?php $str=" Arithmetic operation"; $a=4; $b=5; $c=$a+$b; echo "Sum=", $c; $c=$a-$b; echo "<br>Sub=", $c; $c=$a*$b; echo "<br>Mul=", $c; $c=$a/$b; echo "<br>Div=", $c; ?> 2. PHP program to print person name and age. <?php $name="John"; $age=20; echo "Person name=", $name; echo "<br>Age=", $age; […]

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]]> Here are some basic programs using PHP

1. Arithmetic operation program using PHP

<?php
$str=" Arithmetic operation";
$a=4;
$b=5;
$c=$a+$b;
echo "Sum=", $c;
$c=$a-$b;
echo "<br>Sub=", $c;
$c=$a*$b;
echo "<br>Mul=", $c;
$c=$a/$b;
echo "<br>Div=", $c;
?>

2. PHP program to print person name and age.

<?php
$name="John";
$age=20;
echo "Person name=", $name;
echo "<br>Age=", $age;
?>

3. PHP Program to SWAP 2 Numbers

<?php
$a=4;
$b=5;
echo "A: before swap=", $a;
echo "<br>B: before swap=", $b;
$c=$a;
$a=$b;
$b=$c;
echo "<br>A: After swap=", $a;
echo "<br>B: After swap=", $b;
?>

4.  PHP Program to test whether the number is +ve or -ve.

<?php
$a=-10;
if ($a>0)
{
echo "Number is positive";
}
else
{
echo "Number is negative";
}
?>

5. PHP program to test whether the person is Eligible to vote or not.

<?php
$age=19;
$name="John";
if ($age>=18)
{
echo $name, " is eligible for vote";
}
else
{
echo $name, " is NOT eligible for vote";
}
?>

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]]> PHP https://mitindia.in/php/ Tue, 28 Jun 2016 06:52:43 +0000 http://www.mitindia.in/?p=187 PHP = Pre-processor Hypertext PHP, a server side scripting languages widely (nearly 82% of the worlds websites are developed using PHP!) used in developing dynamic and interactive webpages. Advantages of PHP ——Dynamic content. —Computational capability. —Database and file system access. —Network access (from the server only). —Built-in libraries and functions. —Known platform for execution (as opposed […]

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]]> PHP = Pre-processor Hypertext PHP, a server side scripting languages widely (nearly 82% of the worlds websites are developed using PHP!) used in developing dynamic and interactive webpages.
Advantages of PHP
  • ——Dynamic content.
  • —Computational capability.
  • —Database and file system access.
  • —Network access (from the server only).
  • —Built-in libraries and functions.
  • —Known platform for execution (as opposed to client-side, where the platform is uncontrolled.)
  • —Security improvements
Developed by Rasmus Lerdorf in 1994
It is a powerful server-side scripting language for creating dynamic and interactive websites.
It is an open source software, which is widely used and free to download and use (PHP is FREE to download from the official PHP resource: www.php.net). 
It is an efficient alternative to competitors such as Microsoft’s ASP.
PHP is perfectly suited for Web development and can be embedded directly into the HTML code.
The PHP syntax is very similar to JavaScript, Perl and C. 
PHP is often used together with Apache (web server) on various operating systems. It also supports ISAPI and can be used with Microsoft’s IIS on Windows.
PHP supports many databases (MySQL, Informix, Oracle, Sybase, Solid, PostgreSQL, Generic ODBC, etc.)
PHP files have a file extension of “.php”, “.php3”, or “.phtml”
PHP files can contain text, HTML tags and scripts
PHP files are returned to the browser as plain HTML
What you need to develop PHP Application:
1. Install Apache (or IIS) on your own server, install PHP, and MySQL OR
2. Install Wampserver2 (a bundle of PHP, Apache, and MySql server) on your own server/machine
Sample PHP Syntax
<?php
echo “Hello Class of 2011. This is my first PHP Script”;
echo “<br />”;
print “<b><i>What have you learnt and how many friends have you made?</i></b>”;
echo “<br /><a href=’PHP I-BSIC.ppt’>PHP BASIC</a>”;
?>
Steps to  execute PHP Programs
1. Install WAMP server or XAMPP or LAMP 
2. Create a PHP file (exa: a1.php)
3. Start WAMP Server (wait for WAMP server icon on system tray turns into green color, which means server is running properly!)
4. Place your newly created php file in the following location : C:\WAMP\WWW\yourwebfolder
5. Now, open the browser and type the url in the address bar as : http://localhost/yourwebfolder/a1.php
That’s it, now you can able to see your php program output!

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]]> Fill values in combo box from MySQL using PHP https://mitindia.in/fill-values-in-combo-box-from-mysql-using-php/ Tue, 21 Jun 2016 11:41:32 +0000 http://www.mitindia.in/?p=107 THE BELOW EXAMPLE SHOWS THAT HOW TO FILL VALUES IN SECOND COMBO BOX BASED ON FIRST COMBO BOX SELECTED VALUES FROM MYSQL DB USING PHP 1 Create a table called “Course” as following screen shot with insert few records as well in it. 2. Create another table called “Subjects” and add few records as following. 3. […]

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]]> THE BELOW EXAMPLE SHOWS THAT HOW TO FILL VALUES IN SECOND COMBO BOX BASED ON FIRST COMBO BOX SELECTED VALUES FROM MYSQL DB USING PHP

1 Create a table called “Course” as following screen shot with insert few records as well in it.
2. Create another table called “Subjects” and add few records as following.
3. Now create “config.php” with following code in it.
<?php
      $host="localhost";
      $username="root";
      $password="";
      $dbname="demo";
      $con=mysql_connect("$host","$username","$password");
      mysql_select_db("$dbname",$con);
?>
In the above code please enter your database name, user name, password etc.
4. Now create “cmb5.php” program with following code in it.
<?php
include('config.php');
?>
<html>
<head>
<script language="javascript">
    function showSub(catid)
 {
 document.frm.submit();
 }
</script>
</head>
<body>
<h2> Fill values in second combo box based on </br> first 

combo box values from MySQL DB using PHP </h2>
<hr color=red>
<?php error_reporting (E_ALL ^ E_NOTICE); ?>
<form action="" method="POST" name="frm" id="frm">
<table width="500" border="0">
  <tr bgcolor=silver>
    <td>Course</td>
    <td> <select name="course_id" id="course_id" 

onChange="showSub(this.value);">
       <option value="">--Select--</option>
       <?php
        $sql1="select * from course";
       $sql_row1=mysql_query($sql1);
       while($sql_res1=mysql_fetch_assoc($sql_row1))
       {
       ?>
       <option value="<?php echo $sql_res1["id"]; ?>" 

<?php if($sql_res1["id"]==$_REQUEST["course_id"]) { 

echo "Selected"; } ?>><?php echo 

$sql_res1["course_name"]; ?></option>
        <?php
        }
        ?>
       </select>
       </td>
  </tr>
  <tr bgcolor=silver>
    <td>Subjects</td>
    <td>
       <select name="sub_id" id="sub_id">
        <option value="">--Select--</option>
       <?php
       $sql="select * from subjects where 

cat_id='$_REQUEST[course_id]'";
       $sql_row=mysql_query($sql);
       while($sql_res=mysql_fetch_assoc($sql_row))
       {
       ?>
       <option value="<?php echo $sql_res["id"]; 

?>"><?php echo $sql_res["Sub"]; ?></option>
       <?php
       }
       ?>
    </select>
       </td>
  </tr>
</table>
</form>
</body>
</html>
5. Finally go for out put to see the above program.
That’s all for now, kindly subscribe us / comments your response!.
Thank you!

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]]> PHP-Database Programs https://mitindia.in/php-database-programs/ Sat, 18 Jun 2016 09:39:21 +0000 http://www.mitindia.in/?p=89 Following are the various PHP  programs to demonstrate Database  connections. 1. PHP Program to demonstrates whether the connection to mysql database is active or not. <?php $dbhost = 'localhost'; $dbuser = 'root'; $dbpass = ''; $db = 'mars_db'; $conn = mysql_connect($dbhost,$dbuser,$dbpass); if (!$conn) { die('Could not connect: ' . mysql_error()); } else { echo 'Connected […]

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]]> Following are the various PHP  programs to demonstrate Database  connections.

1. PHP Program to demonstrates whether the connection to mysql database is active or not.

<?php
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = '';
$db = 'mars_db';
$conn = mysql_connect($dbhost,$dbuser,$dbpass);

if (!$conn)
{
die('Could not connect: ' . mysql_error());
}
else
{
echo 'Connected successfully';
}
?>

The above program will show following output.

2. PHP Program to create database from localhost.

<?php
$con=mysqli_connect("localhost","root","");

if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }

$sql="CREATE DATABASE demo_12";

if (mysqli_query($con,$sql))
  {
  echo "Database demo_12 created successfully";
  }
else
  {
  echo "Error creating database: " . mysqli_error();
  }
?>

The above program produces following output.

3. PHP Program to create a table in database from localhost.

<?php
$con=mysqli_connect("localhost","root","","demo_12");

if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }

$sql="CREATE TABLE emp_ret(FirstName CHAR(30),LastName CHAR(30),Age INT)";

if (mysqli_query($con,$sql))
  {
  echo "Table emp_ret created successfully";
  }
else
  {
  echo "Error creating table: " . mysqli_error();
  }
?>

The above program will have a following output.

4. PHP Program to connect MS Access Database using ODBC Data source. [Click here to create DSN (Data Source Naming) for MS Access.]

<html>
<body>
<h3 style="background-color:yellow"> Connecting to Ms 

Access Database using PHP </h3>
<hr>
<?php
$conn=odbc_connect('acc_php','','');
if (!$conn)
 {
exit("Connection Failed: " . $conn);
}
$sql="SELECT * FROM Cust";
$rs=odbc_exec($conn,$sql);

if (!$rs)
{
exit("Error in SQL");
}
echo "<table border=1><tr>";
echo "<th>Customer Code</th>";
echo "<th>Customer Name</th>";
echo "<th>Address</th></tr>";
while (odbc_fetch_row($rs))
  {
  $c_code=odbc_result($rs,"ccode");
  $c_name=odbc_result($rs,"cname");
  $c_addr=odbc_result($rs,"caddr");
  echo "<tr><td>$c_code</td>";
  echo "<td>$c_name</td>";
  echo "<td>$c_addr</td></tr>";
  }
odbc_close($conn);
echo "</table>";
?>
</body>
</html>

The above program produces following output.

 

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]]>