What is the correct MySQL syntax for selecting data based on a specific condition in PHP?

When selecting data based on a specific condition in MySQL using PHP, you can use the SELECT statement with a WHERE clause to specify the condition. This allows you to filter the results based on a specific criteria, such as a certain value in a column or a combination of conditions. Make sure to properly sanitize any user input to prevent SQL injection attacks. 

<?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);
}

// Select data based on a specific condition
$sql = "SELECT * FROM table_name WHERE column_name = 'specific_value'";
$result = $conn->query($sql);

// Display the results
if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "Column 1: " . $row["column1_name"]. " - Column 2: " . $row["column2_name"]. "<br>";
    }
} else {
    echo "0 results";
}

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

Keywords

MySQL syntax selecting data specific condition PHP query

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