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class test
{
public $val='test';
}
$test1=new test();
$test2=bew test();
if($test1==$test2)
{
echo '两者相等';
}
function test(&$args)
{
$args += 1;
}
$args = 4;
test($args);
echo $args ;
function test($args)
{
$args += 1;
}
$args = 4;
test($args);
echo $args ;
function test(test $aa)
{
echo $aa->aaa;
}