How can echoing the SQL query string help in debugging MySQL queries in PHP?

When debugging MySQL queries in PHP, echoing the SQL query string can help identify any syntax errors or unexpected values being passed to the query. By printing out the query string before executing it, you can easily spot any mistakes and troubleshoot the issue more effectively. 

$sql = "SELECT * FROM table_name WHERE column_name = 'value'";
echo $sql; // Output the SQL query string for debugging purposes

// Execute the query using mysqli or PDO
$result = $mysqli->query($sql);

Keywords

PHP MySQL debugging SQL query echo

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