.\"return the number of elements in an array or mapping .DT sizeof Discworld driver help sizeof Name .SI 5 sizeof() - return the number of elements in an array or mapping .EI Synopsis .SI 5 int sizeof(mixed var); .EI Description .SP 5 5 Return the number of elements in an array or mapping 'var'. If `var' is not an array or a mapping, then '0' is returned. .EP See also .SI 5 allocate(3). .EI