How can PHP functions like mysql_real_escape_string() help in handling special characters in data input?

Special characters in data input can potentially be used for SQL injection attacks if not properly handled. PHP functions like mysql_real_escape_string() can help by escaping special characters in input data, making it safe to use in SQL queries. 

// Example PHP code snippet using mysql_real_escape_string() to handle special characters in data input
$input_data = "John's book";
$escaped_data = mysql_real_escape_string($input_data);
$query = "INSERT INTO table_name (column_name) VALUES ('$escaped_data')";
// Execute the query safely using the escaped data

Keywords

PHP mysql_real_escape_string() special characters data input security

Related Questions