What SQL concept should be used to delete data based on a specific condition in PHP?

To delete data based on a specific condition in PHP, you can use the SQL DELETE statement with a WHERE clause. This allows you to specify the condition that must be met for the data to be deleted. Here is an example PHP code snippet that demonstrates how to delete data based on a specific condition using SQL: 

<?php
// Establish a connection to the database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

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

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Define the condition for deletion
$condition = "column_name = 'value'";

// SQL query to delete data based on the condition
$sql = "DELETE FROM table_name WHERE $condition";

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

// Close the connection
$conn->close();
?>

Keywords

SQL DELETE condition PHP data

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