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<?php
 $f = fopen("what_server_receives.txt", "a");
 
 while( list($key, $val) = each ($_POST))
 {
 fwrite ($f, "$key = $val\n");
 }
 fwrite ($f, str_repeat("-", 80)."\n");
 
 fclose($f);
 
 // if the POST doesn't contain cmd variable, return INVALID
 if($_POST["cmd"]!="_notify-validate")
 {
 print "INVALID";
 }
 
 // otherwise, return random answer
 print rand(0,1)?"VERIFIED":"INVALID";
 
 ?>
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