For those who don’t know @ is error control operator. Taken from PHP documentation “When prepended to an expression in PHP, any error messages that might be generated by that expression will be ignored”. In other words error message won’t be printed out. There are some situations when @ sign might be helpful e.g. include() [...]
There is no need for discussion why links on a website should be optimized for search engines. There are certainly automated ways how you can build SEO links. If this process is automated you loose some flexibility you used to have to “just” write the link in <a> tag. This is how you can do [...]
On large busy projects where server resources do matter it is good idea to reuse object which is used several times during script execution in different scopes. There are more options. One is to use global keyword on top of each function where object is needed but you must make always sure object really exist [...]
