PHP
- About - History
- HTTP: A few words about how the web works
- Hello world
- Hello world, no HTML
- HTML inside PHP
- phpinfo
- Comments
- Errors
- print vs echo
- Numbers
- Numerical Operations
- Strings - concatenation
- Variables
- Variable interpolation (or variable expansion)
- String functions
- addslashes
- stripslashes
- trim - remove white spaces from both ends of a string