Difference: VarURLPARAM (2 vs. 3)

Revision 304 Jan 2007 - TWikiContributor

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META TOPICPARENT name="TWikiVariables"
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URLPARAM{"name"} -- get value of a URL parameter

  • Returns the value of a URL parameter.
  • Syntax: %URLPARAM{"name"}%
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"name" The name of a URL parameter required
default="..." Default value in case parameter is empty or missing empty string
newline="<br />" Convert newlines in textarea to other delimiters no conversion
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encode="entity" Encode special characters into HTML entities. See ENCODE for more details. no encoding
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encode="entity" Encode special characters into HTML entities. See ENCODE for more details. no encoding
 
encode="url" Encode special characters for URL parameter use, like a double quote into %22 no encoding
encode="quote" Escape double quotes with backslashes (\"), does not change other characters; required when feeding URL parameters into other TWiki variables no encoding
multiple="on"
multiple="[[$item]]"
If set, gets all selected elements of a <select multiple="multiple"> tag. A format can be specified, with $item indicating the element, e.g. multiple="Option: $item" first element
separator=", " Separator between multiple selections. Only relevant if multiple is specified "\n" (new line)
  • Example: %URLPARAM{"skin"}% returns print for a .../view/TWiki/VarURLPARAM?skin=print URL
Changed:
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  • ALERT! Note: URL parameters passed into HTML form fields must be entity ENCODEd.
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  • ALERT! Note: URL parameters passed into HTML form fields must be entity ENCODEd.
 
  • ALERT! Note: Double quotes in URL parameters must be escaped when passed into other TWiki variables.
    Example: %SEARCH{ "%URLPARAM{ "search" encode="quotes" }%" noheader="on" }%
  • ALERT! Note: When used in a template topic, this variable will be expanded when the template is used to create a new topic. See TWikiTemplates#TemplateTopicsVars for details.
  • ALERT! Note: There is a risk that this variable could be misused for cross-site scripting.
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Note If you have %URLPARAM{ in the value of a URL parameter, it will be modified to %<nop>URLPARAM{. This is to prevent an infinite loop during expansion.

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