Java script or PHP?

[st_hart]

Which is better to use. Some web master suggest that PHP is better and securer as it is executed in the server instead of on the web browser. So nobody cannot see the script in the page source. But I heard also that using PHP make our web pages cannot easily crawled by search engines. What do you think?

[alorageorge]

JavaScript is mainly used for client-side scripting language, while PHP is a server-side technology. Unlike Java or ASP.Net, PHP does not have the tools to do the work on the client side. Therefore, you must be combined with JavaScript and PHP to develop powerful Web applications

[akiratom]

JavaScript is mainly used as a client side scripting language, while PHP is a server side technology. A JavaScript header is sent at the very beginning to inform the page that our PHP script is outputting a JavaScript file.