• « Other Enhancements
  • Key PHP 5.1.x features »
  • PHP 5 Manual
  • Appendices
  • Migrating from PHP 5.0.x to PHP 5.1.x
Edit Report a Bug GitHub logo

Migrating from PHP 5.0.x to PHP 5.1.x

Table of Contents

  • Key PHP 5.1.x features
  • Changes in reference handling
  • Reading []
  • Integer values in function parameters
  • Class and object changes
  • Extensions
  • Date/time support
  • Changes in database support
  • Checking for E_STRICT

See also the migration guides for PHP versions 5.0.x, 5.2.x, 5.3.x, 5.4.x, 5.5.x and 5.6.x.

  • Other versions of this page
    • PHP 4
    • PHP 5
Legacy manuals maintained by Home
  • Get help migrating a legacy app
  • Extend PHP support for EOL versions