2
I want to check through the URL if I have any variables passed to via GET.
For example at this url: www.exemplo.htm?teste=teste
if url then -- se na barra de endereço tem um get
return true
else
return false
end
I have a variable passed, how can I check this in language LUA?
2
One way to do this is to use the function string.gmatch:
function checkURL(url, parametro)
for chave, valor in string.gmatch(url, "(%w+)=(%w+)") do
if valor == parametro then
return true
end
end
return false
end
Use the function checkURL thus:
if checkURL("www.exemplo.htm?chave1=valor1&chave2=valor2", "valor1") then
print ("valor1 está presente na URL")
else
print ("valor1 NÃO foi encontrado na URL")
end
Another alternative is to use the function string.find:
url = "www.exemplo.htm?chave1=valor1&chave2=valor2"
if string.find(url, "valor1") then
print ("valor1 está presente na URL")
else
print ("valor1 NÃO foi encontrado na URL")
end
Thanks for the answer, but this I have to pass the url by paramentro in the function. There is no way to go "fetch" automatically?
@akm I updated the answer, see if this is it.
right but the url remains a variable, I wanted it to be fetched directly from the browser’s address bar. And then pass the condition.
@akm Ai will depend on how you implement this, you can take this address and put it in the variable and make the comparison, which you use to make the requests? That one?
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Assuming the URL is:
www.exemplo.htm?chave1=valor1&chave2=valor2, you want to know if thevalor1is present in it?– stderr
Yes that’s right, I want to know if the url has any past parameters. If yes return true and if there is nothing, that is, the url being just www.exemplo.htm return false.
– akm