SAMS Teach Yourself PHP in 24 Hours, 3rd Edition courtesy of the Association for Computing Machinery
This post was created as a reference point.
PHP Standard Data Types
There are 6 standard data types in PHP. They are:
There are also 2 Special Data Types. They are:
Testing for a specific data type.
Functions to test data types
Operators and Expressions
An operator is a symbol or series of symbols that, when used in conjunction with values, performs an action and usually produces a new value.