Intro to PHP 7

Transcript

1. PHP 7
2. 2015. • 2004. PHP 5.0
 • PHP 6
 • Important year for the PHP community
 • End of November
3. What’s there to know? • Impact on current codebase
 • Is it safe to update
 • What’s really changed

4. Performance • Reason to upgrade
 • Two times faster
 • Fast as HHVM
6. Backward compatibility • Deprecated methods are removed 
 (ASP tags (<% %>, <%=), split, mysql extension) • Uniform Variable Syntax 
 force normal expression evaluation order
9. Engine exceptions • Facilitate handling errors
 • Fatal and recoverable fatal errors -> exceptions
 • We should catch those exceptions and handle
11. New features • New operators
 • spaceship 
 • null coalesce
 • scalar type hint
 • return type hint
12. Spaceship Combined comparision operator <=>
13. Null coalesce operator • Shortcut for conditional that checks if variable is set
14. Scalar type hints • Integers, floats, strings and booleans as type hints
 • non restrictive (float to int)
 • it’s possible to enable strict mode
15. Return type hints • Non restrictive
 • available strict mode
16. Many more • Anonymous classes
 • Closure call method
 • Group ‘use’ declarations