PHP
160
Keywords and functions
50
Changes in new versions
9
Type initialization
66
Basic types
51
Arrays and collections
20
Control flow
43
Classes
8
Structures (records)
9
Enumerations
7
Interfaces
1
Dynamic types
11
Functions
13
Lambda expressions
7
Exception handling
7
Regular expressions
28
Files
9
Databases
24
Serialization
5
Colors
9
Algorithms
36
Design patterns
6
Reflection (late binding)