Introduction
Welcome
()
About PHP 7
()
How to upgrade to PHP 7
()
1. Major Features
Better performance
()
Scalar type declarations
()
Return type declarations
()
Combined comparison operator
()
Null coalescing operator
()
Anonymous classes
()
2. Improvements
Arrays as constants
()
Unicode codepoint escape syntax
()
Uniform variable syntax
()
Catchable exceptions and errors
()
Integer division with intdiv()
()
Filtered unserialize()
()
Grouped imports with use()
()
Less frequently used improvements
()
3. Deprecations and Deletions
PHP 4 constructors
()
Alternative PHP tags
()
Time zone warnings
()
PHP 5 deprecations
()