What is the best SQL query syntax to retrieve specific database entries based on non-matching fields in PHP?

When retrieving specific database entries based on non-matching fields in PHP, you can use the SQL query syntax with the "NOT LIKE" operator. This operator allows you to retrieve entries that do not match a specific pattern or value in a certain field. By using this operator in your SQL query, you can effectively filter out entries that do not meet your criteria. 

// Connect 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);
}

// Retrieve entries based on non-matching fields
$sql = "SELECT * FROM table_name WHERE column_name NOT LIKE '%pattern%'";
$result = $conn->query($sql);

// Display the retrieved entries
if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "Field 1: " . $row["field1"] . " - Field 2: " . $row["field2"] . "<br>";
    }
} else {
    echo "0 results";
}

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

Keywords

SQL query syntax retrieve database entries non-matching fields PHP

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