How to use trigger error in PHP

This article describe about trigger_error() function in PHP.
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trigger_error() function

This function create user define error message.

This function is used to trigger an error message at a user_defined condition. and used with the built-in error handler, or also user-defined function set by the set_error_handler() function.

It is most useful  function to display user-define error on the define error.

On unvalid user define error return FALSE otherwise TRUE.


trigger_error (error_message, trigger_type)


if ($test>1)
trigger_error("A custom error has been triggered");



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