LPC Library Functions: catch

NAME

catch() - catch an evaluation error

SYNOPSIS

mixed catch( mixed expr );

DESCRIPTION

Evaluate <expr>. If there is no error, 0 is returned. If there is a standard error, a string (with a leading '*') will be returned.

The function throw() can also be used to immediately return any value, except 0. catch() is not really a function call, but a directive to the compiler.

The catch() is somewhat costly, and should not be used just anywhere. Rather, use it at places where an error would destroy consistency.

SEE ALSO

error(), throw(), error_handler()