Why is it important to ensure that column names in a SQL query match the actual column names in the database table when using PHP?

It is important to ensure that column names in a SQL query match the actual column names in the database table when using PHP because mismatches can lead to errors or unexpected behavior in your application. To solve this issue, you should always double-check the column names in your SQL queries against the actual column names in the database table to avoid any discrepancies. 

// Example of ensuring column names match in a SQL query
$column1 = "column_name1";
$column2 = "column_name2";

$sql = "SELECT $column1, $column2 FROM table_name";
$result = mysqli_query($connection, $sql);

if ($result) {
    // Process the query result
} else {
    echo "Error: " . mysqli_error($connection);
}

Keywords

SQL query column names database table PHP error types

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