This book is the 4th edition, which has been completely updated, rewritten and expanded, including the latest improved features of PHP5.3 (for example, better error and exception handling), MySQL's stored procedures and storage engine, Ajax technology and Web2 .0 and security issues that Web applications need to pay attention to. [2]
PHP's unique syntax is a mix of C, Java, Perl, and PHP's own innovative syntax. It can execute dynamic web pages faster than CGI or Perl. Compared with other programming languages, dynamic pages made with PHP embed programs into HTML documents for execution, and the execution efficiency is much higher than CGI that completely generates HTML tags; PHP can also execute compiled code, and the compilation can Achieve encryption and optimize code running, making the code run faster. PHP has very powerful functions. PHP can realize all CGI functions and supports almost all popular databases and operating systems. The most important thing is that PHP can use C and C to expand the program!