Документация PHP
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Migrating from PHP 5.0.x to PHP 5.1.x
Содержание
- 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
Key PHP 5.1.x features
Some of the key features of PHP 5.1.x include:
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A complete rewrite of date handling code, with improved timezone support.
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Significant performance improvements compared to PHP 5.0.X.
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PDO extension is now enabled by default.
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Over 30 new functions in various extensions and built-in functionality.
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Over 400 various bug fixes.