Description:
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Need a explicit type cast...

original source:
                                if(yych <= '\277')     goto yy15;

patched:
                                if(yych <= (YYCTYPE)'\277')     goto yy15;


Reproduce code:
---------------
http://barajas.mit.edu/php_bug/test.php.txt


// just the relevant bits here - see url for a working program
<?php if (isSet($_POST["submit"])) print_r($_POST["a"]); ?>

<form method = "post"  action = "">
<input type = "hidden"  name = "a[]"  value = "val1">
<input type = "hidden"  name = "a[]"  value = "val2">
<input type = "hidden"  name = "a[]"  value = "val3">
<input type = "submit" name = "submit" value = "submit">
</form>




Expected result:
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The array $_POST["a"] should have three strings in it after the form is submitted. Unpatched PHP-4.3.6 would repeat the last two values in additional two array slots.  Forms submitted via get didn't exhibit this behavior. Scalars passed via post also did not exhibit this behavior.

After I patched the C code as above, I got three and only three strings back in $_POST["a], which is what I'd expect.
 

Actual result:
--------------
Array ( [0] => val1 [1] => val2 [2] => val3 [3] => val2 [4] => val3)