Description:
------------
"$a = $a . $b;" make a unterminated loop.

-> my solutions
1. $a = $a . $b; => $a .= $b;
2. for ($i=0; $i<10; $i++) => for ($i=0; $i<(int)10; $i++) 



Reproduce code:
---------------
<?
$a = $a . $b;
$a = $a . $b;
$a = $a . $b;
$a = $a . $b;
$a = $a . $b;
$a = $a . $b;
$a = $a . $b;

for ($i=0; $i<10; $i++) {
	if($i > 100) die('stop@A');
}

for ($i=0; $i<10; $i++) {
	if($i > 100) die('stop@B');
}

for ($i=0; $i<10; $i++) {
	if($i > 100) die('stop@C');
}

die('OK');
?>

Expected result:
----------------
OK

Actual result:
--------------
stop@A