What are the potential pitfalls of using special characters in column names in PHP queries?

Using special characters in column names in PHP queries can lead to syntax errors or unexpected behavior. To avoid this issue, it's best to enclose column names with special characters in backticks (`) in SQL queries. 

// Example of using backticks to enclose column names with special characters in a SQL query
$query = "SELECT `special_column` FROM `table_name` WHERE `id` = 1";
$result = mysqli_query($connection, $query);

// Fetching the results
while ($row = mysqli_fetch_assoc($result)) {
    echo $row['special_column'];
}

Keywords

special characters column names PHP queries SQL injection data validation

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