phpmysql Archives - https://mitindia.in/tag/phpmysql/ Sat, 26 Nov 2016 07:01:52 +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 phpmysql Archives - https://mitindia.in/tag/phpmysql/ 32 32 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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]]> Inserting radio button value to mysql database through php script https://mitindia.in/inserting-radio-button-value-to-mysql-database-through-php-script/ Tue, 21 Jun 2016 11:37:24 +0000 http://www.mitindia.in/?p=105 In the below example shows that  “Inserting radio button value to mysql database through php script” Before we begin let us understand brief about radio buttons, radio buttons are used to select single value from a group or it is for single selection or true / false type of values. Step 1 : Create table […]

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]]> In the below example shows that  “Inserting radio button value to mysql database through php script”
Before we begin let us understand brief about radio buttons, radio buttons are used to select single value from a group or it is for single selection or true / false type of values.

Step 1 : Create table as following screen shot in MySql database with all fields set to varchar type.

Step 2 : Create a configuration file for connection purpose as following and name it config2.php (as per my example)

<?php
      $host="localhost";
      $username="root";
      $password="";
      $dbname="demo";
      $con=mysql_connect("$host","$username","$password");
      mysql_select_db("$dbname",$con);
?>

Step 3:  Create main html/php page to display radio buttons and name it “radio2mysql.php” and follow the below code.

<html>
<head> 
</head> 
<body>
<center>
<table style="border: 1px solid yellowgreen;">
 <h2>Inserting Radio button value to MySQL database in 
php</h2>
 <form method="post" action="">
<tr> 
<td> Register No: </td> <td> <input type=text 
name=t1> </td> </tr>
<tr><td>  <input type="radio" name="status" 
value="Booked">Booked 
 <input type="radio" name="status" 
value="Pending">Pending </td> </tr>
<tr> <td> 
<input type="submit" name="submit" Value="submit"> 
</td> </tr> </table>
 </form>
 </body>
</html>
<?php error_reporting (E_ALL ^ E_NOTICE); ?>
<?php
include 'config2.php';
$t1=$_POST['t1'];
$st=$_POST['status'];
$query=mysql_query("select * from booked_status where 
regno='".$t1."' ") or die(mysql_error());
$duplicate=mysql_num_rows($query);
if (isset($_POST['submit']))
{
if($duplicate==0)
   {
$query = "INSERT INTO booked_status (regno, status) 
VALUES ('$t1','$st')";
mysql_query($query) or die(mysql_error());
echo "<center><h2 style='background-color:green; 
color:white; display:inline'><span>Successfully 
updated.</span>";
 }
 else
    {
      echo "<center><h2 style='background-color:red; 
color:white; display:inline'><span>The Register No. '$t1' is 
already present in the booking table";
    }
}
?>

Step 4: Output of the above program is…

Step 5: After successful submit with register number and radio button value following output can be generated.

Step 6 : After unsuccessful submit with register number and radio button value following output can be generated(duplicate values).
Thank you for referring above example!

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]]> mysqli-examples https://mitindia.in/mysqli-examples/ Sat, 18 Jun 2016 09:00:01 +0000 http://www.mitindia.in/?p=59 Following examples shows that how to use mysqli functions to insert, update, delete and select records from database. mysqli, here the letter ‘i’ stands for improved version. Example 1 : Insert record to mysql database through php using MySQLi function. Step 1 : create a following html file. <html> <body> <form name=f1 action="mysqli_ins.php" method="POST"> Enter […]

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]]> Following examples shows that how to use mysqli functions to insert, update, delete and select records from database.

mysqli, here the letter ‘i’ stands for improved version.

Example 1 : Insert record to mysql database through php using MySQLi function.

Step 1 : create a following html file.

<html>
<body>
<form name=f1 action="mysqli_ins.php" method="POST">
Enter Emp Code: <input type=text name=t1> <br>
Enter Emp Name: <input type=text name=t2> <br>
Enter Emp Salary: <input type=text name=t3> <br>
<input type=submit value="Submit Data">
</form>
</body>
</html>

Step 2: Now create “mysqli_ins.php” with following code in it.

<?php

$ec=$_POST['t1'];
$en=$_POST['t2'];
$sal=$_POST['t3'];

$servername = "localhost";
$username = "root";
$password = "";
$dbname = "emp_db";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("Connection issue: " . $conn->connect_error);
} 

$sql = "INSERT INTO emp_details (ecode, ename, sal)
VALUES ('$ec', '$en', '$sal')";

if ($conn->query($sql) === TRUE) {
    echo "New record added successfully";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>

Step 3: Now run html file and enter a record in it and click on submit button to insert new record to table.

Example 2: Below example shows updating an existing records.

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "emp_db";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("Connection issue: " . $conn->connect_error);
} 

$sql = "UPDATE emp_details SET ecode='e002' WHERE ename='amit'";

if ($conn->query($sql) == TRUE) {
    echo "One record updated successfully";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>

Example 3: Below example shows that old / existing record can be deleted.

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "emp_db";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("Connection issue: " . $conn->connect_error);
} 

$sql = "DELETE from emp_details  WHERE ecode='E91'";

if ($conn->query($sql) === TRUE) {
    echo "One record Deleted successfully";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>

Example 4: Select query example.

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

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

$result = mysqli_query($con,"SELECT * FROM emp_details");

echo "<center>";
echo "<h2>Select Query </h2>";
echo "<table border=1>";
echo "<tr bgcolor=khaki>";
echo "<th> Employee code </th>";
echo "<th> Employee Name </th>";
echo "<th> Salary </th>";
echo "</tr>";

while($row = mysqli_fetch_array($result))
  {
echo "<tr>";
echo "<td>" .$row['ecode']. "</td>";
echo "<td>" .$row['ename']. "</td>";
echo "<td>" .$row['sal']. "</td>";
}
echo "</table>";
echo "<center>";
?>

 

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]]>