Question:
Are PDO's query() and execute() methods essentially interchangeable, or do they differ significantly?
Answer:
While both methods perform database queries, they have some fundamental distinctions:
query() vs execute()
Prepared Statement Example:
<code class="php">$sth = $dbh->prepare('SELECT name, colour, calories FROM fruit WHERE calories < :calories AND colour = :colour'); $sth->bindParam(':calories', $calories); $sth->bindParam(':colour', $colour); $sth->execute();</code>
In this case, the variables $calories and $colour do not need to be escaped or quoted since they are separated from the query.
Recommendation:
For enhanced security, it is best practice to use prepared statements with execute(). This ensures that user-supplied data is not vulnerable to SQL injection attacks.
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