Error message. The default message is "unknown error" if left blank.
integer $code
Error code. It is recommended to use an error code for even the simplest errors, in order to simplify error handling and processing.
integer $mode
Error mode. This is one of PEAR_ERROR_RETURN, PEAR_ERROR_PRINT, PEAR_ERROR_TRIGGER, PEAR_ERROR_DIE, PEAR_ERROR_CALLBACK, or PEAR_ERROR_EXCEPTION. See setErrorHandling() for detailed information and examples of the meaning of these constants.
mixed $options
Error options. This depends on the value of $mode, and is documented in setErrorHandling().
mixed $userinfo
Optional user information. This can be used to store any error-specific information, and has an unspecified format.
string $error_class
Error class name to use as the error object. The default error class is PEAR_Error. Use this parameter to specify another class to use, such as a custom class extending PEAR_Error
boolean $skipmsg
Use this parameter if you are using a custom class that does not accept an error message in its constructor. Never use this parameter without the $error_class parameter - it will not work.
Return value
A PEAR_Error object is returned, unless PEAR_ERROR_DIE terminates execution or a PEAR_ERROR_EXCEPTION is never handled.
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