simlple php question ?

Guys can some one here have knowledge in php tell me what the phrase code below mean ?? and what is used for

@ini_set("memory_limit","12M");

thanks

 

It adjusts PHP memory limit for the given script. Useful if you want to leave the default as such, and fix only a certain script. This can be done through .htaccess as well, some hosts have ini_set disabled, but .htaccess traverses directories, so this will be site-wide beyond the current folder.

 

so does this code save memory of the host server , thanks

 

No, it merely limits a script from going beyond what you limit it to. The script will use as much memory as needed, but if you reach the limit, it might give you a fatal error - memory exhausted