一个特别好的学习PHP引用返回的例子
$a = 1; ?>
function b(&$c)
{
$c++;
return $c;
}
$d=b($a);
$d++;
echo($a);
$a = 1;
function &b(&$c)
{
$c++;
return $c;
}
$d=&b($a);
$d++;
echo($a);
?>
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