What does the @ character do in PHP?

This is an error suppression character in PHP.

For instance, if we want to stop errors at runtime (for instance in a live environment rather than in development), then we can use this to suppress typical errors that might occur.

Let's say we try to reference a variable that does not exist, and see what happens:


<?php



echo "$empty";

//PHP Notice: Undefined variable: empty in ...



echo @"$empty";

//no error message output

?>

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What does the @ character do in PHP?

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