This PHP tutorial book is a collection of notes and sample codes written by the author while he was learning PHP himself. It can be used as a tutorial guide for beginners or a reference book for experienced developers. Topics include PHP script file syntax; data types and iterals; variables, operations and expressions; flow control statements: ''if'' and ''switch''; loop statements: ''while'', ''for'', and ''do ... while''; function declaration, arguments, and return values; array and ordered maps; sending out emails; integrating with HTTP Web servers; accessing HTTP requests and responses; managing sessions and cookies; controlling HTTP response headers; accessing MySQL database server; accessing files and directories; using SOAP extension; managing non-ASCII characters; using classes and objects.