ZDNet: PHP and Zend

"PHP is a scripting language with an engine for running the scripts. It comes with no tools at all. Setting it up on Linux or another Unix OS is a breeze if you're a Unix/Apache expert. The PHP language is a bit of a mishmash of other languages--mostly Perl. Version 4 of PHP (we tested 4.04 patch level 1) significantly improved the power of the language, including adding easy access to Java code."

"... Zend Technologies sells a number of ancillary PHP products, including an integrated development environment and several performance-enhancing products." PHP is a scripting language with an engine for running the scripts. It comes with no tools at all. Setting it up on Linux or another Unix OS is a breeze if you're a Unix/Apache expert. ... Zend Technologies sells a number of ancillary PHP products ...