I'm trying to write a loop to read variables I receive from a form:
<form ...>
<input name=a1 value=..>
<input name=a2 value=..> 
<input name=a3 value=..> 
<input name=a4 value=..>
I'd like to get something like:
for ($i=1; $i<=10; $i++) { $tab[$i]="a".$i ;}
The expression "a".$i is actually a string, not a variable.  Any idea how to
"read" the value of that string?
Thanks for your help.

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