[PHP] simple I'm sure

[Keith]

Following loop works fine !
but I don't want $art_nr_1 (which is 4564)
I want to have $art_nr_$i
but if you use it you just get 1,2,3,4

for ($i=1; $i<50; $i++) :
$varid = "quant".$i ;
if ($$varid != "") {
echo
"
<input type=hidden name=\"art_nr\" value=\"$art_nr_1\">
<input type=hidden name=\"quantity\" value=\"$quant1\"> ";

}
endfor; 


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