# 22. Virtuoso Functions Guide - http_param

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## http_param

returns value of a HTML form parameter in VSP context
http_param ([in name varchar]);
Description

This function is used to return value of a HTML form parameter in VSP context. It's almost like call get_keyword ('name', params) used in VSP programming. When 'name' parameter is not supplied, the result of http_param() call will be all paramters, as they are contained in 'params' parameter of the VSP pages. This function is useful in HTTP authentication PL hook, as in this place there is no 'params' argument.

Parameters
name – A string with name of the parameter to return
Return Types

Returns value of a HTML form parameter, or array of all parameters.

See Also

VSP pages vhost_define