Chapter 2. The PHP Scripting Language
This
chapter is the first of three that focus on the PHP scripting
language. This chapter describes the PHP language basics. Chapter 3 describes PHP's support
for arrays, strings, and other data types, and Chapter 4 introduces object-oriented programming in
PHP.If you're familiar with any programming language,
PHP should be easy to learn. If you have done no programming before,
the pace of this chapter may be brisk but should still be manageable.
PHP has a syntax similar to JavaScript, which many web designers have
learned; both languages hark back to the classic C and Perl languages
in syntax.The topics covered in this chapter include:PHP basics, including script structure, variables, supported types,
constants, expressions, and type conversionsCondition and branch statements supported by PHP, including
if, if...else, and the
switch statementsLooping statementsUser-defined functions
We conclude the chapter with a short example that puts many of the
basic PHP concepts together.