In this second excerpt from Advanced PHP Programming, ... Defensive coding in PHP. by George Schlossnagle. Defensive coding in PHP. feature. Apr 12, 2004 6 mins. Enterprise Applications Security.

My 10-year-old son Wesley is currently coding in Python, PHP, and Swift. He loves solving puzzles and creating things, so I got him into coding when he was 7 years old. He's been taking weekly ...