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Errors are hints from compiler for the programmer to correct. But sometimes we face some unwanted or dynamic error. For example,

$content = filegetcontents(http://www.twitter.com/feed/234);

Here , the url is invalid, or the server of the url is down , PHP shows Warning: Failed to open stream or file access is disabled.

Use @ in front of such function never shows any warning message.

Eg: $content = @filegetcontents(url here) or die (‘Sorry , cannot access the url’);

Another method is runtime PHP ini editing

*ini_set *(‘display_errors’, 0);

//write the code which may cause error here

*ini_set *(‘display_errors’, 1);

But , these things are not recommended. Only for unavoidable situations.