Ubuntu Unleashed 2019 Edition: Covering 18.04, 18.10, 19.04

Modules and CPAN

Code    Examples

Sending Mail

Purging Logs

Posting to  Usenet

One-Liners

Command-Line    Processing

References

47 Using PHP

Introduction    to  PHP

Entering    and Exiting PHP Mode

Variables

Arrays

Constants

References

Comments

Escape  Sequences

Variable    Substitution

Operators

Conditional Statements

Special Operators

Switching

Loops

Including   Other   Files

Basic   Functions

Strings

Arrays

Files

Miscellaneous