Railo 4.2 Reference
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Outputs the elements, variables and values of most kinds of CFML objects. Useful for debugging. You can display the contents of simple and complex variables, objects, components, user-defined functions, and other elements.


writedump([object var,[boolean expand,[string format,[string hide,[numeric keys,[string label,[boolean metainfo,[string output,[string show,[boolean showUDFs,[numeric top,[boolean abort,[string eval]]]]]]]]]]]]]):void


The arguments for this function are set. You can not use other arguments except the following ones.
Name Type Required Description
var object  No Variable to display.  
expand boolean  No expands views  
format string  No specify the output format of the dump, the following formats are supported:
  • simple: - a simple html output (no javascript or css)
  • text (default output="console"): plain text output (no html)
  • html (default output="browser"): regular output with html/css/javascript
  • classic: classic view with html/css/javascript  
  • hide string  No hide column or keys.  
    keys numeric  No For a structure, number of keys to display.  
    label string  No header for the dump output.  
    metainfo boolean  No Includes information about the query in the cfdump results.  
    output string  No Where to send the results:
  • console: the result is written to the console (System.out).
  • browser (default): the result is written the the browser response stream.  
  • show string  No show column or keys.  
    showUDFs boolean  No show UDFs in cfdump output.  
    top numeric  No The number of rows to display.  
    abort boolean  No stops further processing of the request.  
    eval string  No name of the variable to display, also used as label, when no label defined.