$php_errormsg — The previous error message
$php_errormsg is a variable containing the text of the last error message generated by PHP. This variable will only be available within the scope in which the error occurred, and only if the track_errors configuration option is turned on (it defaults to off).
Note: This variable is only available when track_errors is enabled in php.ini.
If a user defined error handler is set $php_erromsg is only set if the error handler returns FALSE
Example #1 $php_errormsg example
<?php
@strpos();
echo $php_errormsg;
?>
The above example will output something similar to:
Wrong parameter count for strpos()