Description:
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The parser thinks that a period after an integer must mean the number is a float, even though the period represents a concatenation of a string.

Reproduce code:
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<?php
$time = 2000;

echo $time/1000.' seconds';         // doesn't work
//echo $time/1000..' seconds';        // works - when not commented out

?>

Expected result:
----------------
To see the following output:

2 seconds

Actual result:
--------------
The parser outputs a syntax error:

unexpected T_CONSTANT_ENCAPSED_STRING, expecting ',' or ';'