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# ->convertUrlStringToParameters()
 -  converts a symfony internal URI to an array of parameters (module/action)
 -  converts a symfony internal URI to an array of parameters (module/action?id=12)
 -  converts a symfony internal URI to an array of parameters (module/action?id=12&)
 -  converts a symfony internal URI to an array of parameters (module/action?id=12&test=4&toto=9)
 -  converts a symfony internal URI to an array of parameters (module/action?id=12&test=4&5&6&7&&toto=9)
 -  converts a symfony internal URI to an array of parameters (module/action?test=value1&value2&toto=9)
 -  converts a symfony internal URI to an array of parameters (module/action?test=value1&value2)
 -  converts a symfony internal URI to an array of parameters (module/action?test=value1=value2&toto=9)
 -  converts a symfony internal URI to an array of parameters (module/action?test=value1=value2)
 -  converts a symfony internal URI to an array of parameters (module/action?test=4&5&6&7&&toto=9&id=)
 -  converts a symfony internal URI to an array of parameters (@test?test=4)
 -  converts a symfony internal URI to an array of parameters (@test)
 -  converts a symfony internal URI to an array of parameters (@test?id=12&foo=bar)
 -  converts a symfony internal URI to an array of parameters (@test?id=foo%26bar&foo=bar%3Dfoo)
 -  throw a sfParseException if it cannot parse the query string
# ->redirect()
 -  adds a refresh meta in the content
 -  adds a Location HTTP header
 -  throw an InvalidArgumentException when the url argument is null
 -  throw an InvalidArgumentException when the url argument is an empty string
# ->genUrl()
 -  accepts a string or an array as its first argument
 -  accepts an empty string
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