zusammengesetzte URL

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hallo gemeinde,

bin anscheinend zu blöd zum suchen bzw. finde alles, nur nicht das ich brauche.

würde gerne bestimmte messwerte per url thingspeak übergeben, da ich irgendwie probleme mit der nutzung der thingspeak-library habe (nur 2 messwerte werden übergeben, danach stille).

die url müsste dann aufgebaut sein:

https://api.thingspeak.com/update?api_key=apikey&field1=xxxxxxxx&field2=yyyyyyyy&field3=zzzzzzz

x, y und z sind die messwerte. wie bastele ich mir die url passend zusammen und rufe diese dann auf? müsste doch mit einem webclient funktionieren, aber wie?

danke für eure hilfe!

michael

sprintf()

?


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