Introduction to PHP 8

Content

General (slides 4-21)
- JIT (slides 5-12)
  - How PHP works (slides 6-7)
  - OPcache (slides 8-9)
  - Preloading (slide 10)
  - JIT Compiler (slides 11-12)
- Attributes (slide 13)
- Named arguments (slide 14)
- The nullsafe operator (slide 15)
- Match expression (slide 16)
- Throw expression (slide 17)
- Non-capturing catches (slide 19)
- Trailing comma in parameter lists (slide 19)
- Concatenation precedence (slide 20)
- ext-json always available (slide 21)
About types (slides 22-26)
- Union types (slide 23)
- mixed type (slide 24)
- static return type (slide 25)
- New Stringable interface (slide 26)
What’s new in OOP? (slides 27-33)
- Constructor property promotion (slide 28)
- Inheritance with private methods (slide 29)
- Allowing ::class on objects (slide 30)
- Abstract trait method validation (slide 31)
- Weak maps (slide 32)
- Token as object (slide 33)
New built-in functions (slides 34-39)
- str_contains() (slide 35)
- str_starts_with() & str_ends_with() (slide 36)
- fdiv() (slide 37)
- get_debug_type() (slide 38)
- get_resource_id() (slide 39)
Breaking changes (slides 40-42)
- Breaking changes (slide 41)
- Reclassified engine warnings (slide 42)