php delete code example

Example 1: php remove file

if(file_exists($file)) {
	unlink($file);
}

Example 2: MySQL DELETE

To delete data from a table, you use the MySQL DELETE statement. The following illustrates the syntax of the DELETE statement:

DELETE FROM table_name
WHERE condition;
In this statement:

First, specify the table from which you delete data.
Second, use a condition to specify which rows to delete in the WHERE clause. The DELETE statement will delete rows that match the condition,

Example 3: php delete

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

// Create connection

$conn = mysqli_connect($servername, $username, $password, 
	$dbname);

	// Check connection

	if (!$conn) {

    die("Connection 
	failed: " . mysqli_connect_error());
}

// sql to delete a 
	record

	$sql 
	= "DELETE FROM MyGuests WHERE id=3";

	
if (mysqli_query($conn, $sql)) {
    echo "Record deleted 
	successfully";
} else {
    echo "Error 
	deleting record: " . mysqli_error($conn);
}

mysqli_close($conn);

?>

Example 4: php delete

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

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

	// Check connection

	if ($conn->connect_error) {

    die("Connection failed: " . $conn->connect_error);
}


	
// sql to delete a record

	$sql 
	= "DELETE FROM MyGuests WHERE id=3";

	
if ($conn->query($sql) === TRUE) {
    echo "Record 
	deleted successfully";
} else {
    echo 
	"Error deleting record: " . $conn->error;
}

$conn->close();

?>

Example 5: php delete

<?php
$servername = "localhost";
$username = "username";

	$password = "password";
$dbname = 
	"myDBPDO";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", 
	$username, $password);
    
	// set the PDO error mode to exception
    $conn->setAttribute(PDO::ATTR_ERRMODE, 
	PDO::ERRMODE_EXCEPTION);

    // sql to delete a record

	   
	$sql 
	= "DELETE FROM MyGuests WHERE id=3";

	
    // use exec() because no 
	results are returned
    $conn->exec($sql);
    
	echo "Record deleted successfully";
    }
catch(PDOException $e)
    {
    
	echo $sql . "<br>" . $e->getMessage();
    }

	
$conn = null;

?>