I know this is a simple question, that if I knew what it was technically called i could probably look up and find the answer for myself. However, I don't know what its called, and of all the books I have none of them mention or use this.
Anyway in my searches from time to time when i'm stuck on something looking for samples or more information on particular functions in php I come across something some has done for an example that has "@" in front of it or something similar, usually "@". Why is that used, what does it signify? and is there other characters used in a similar fashion to when someone uses "@".
So all in all I am curious. I just want to know what it is, what it does, if theres any specific doc on the use of "@" and or similar characters
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