Migrating from PHP 5.0.x to PHP 5.1.x

migration51.changes Key PHP 5.1.x features migration51.references Changes in reference handling migration51.reading Reading [] migration51.integer-parameters Integer values in function parameters migration51.oop Class and object changes migration51.extensions Extensions migration51.datetime Date/time support migration51.databases Changes in database support migration51.errorcheck Checking for E_STRICT