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php代码:
<?php
function changeArr(& $arr){
foreach($arr as $k =>$v){
$arr[$k]=stripslashes($v);
}
}
print_r($_POST);
changeArr($_POST);
print_r($_POST);
$a=array(1,4,5);
$b=$a;
$b[0]=10;
print_r($b);
print_r($a);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>sfd</title>
</head>
<body>
<form action="<?php echo $_SERVER['PHP_SELF'];?>" method="post" enctype="multipart/form-data" name="test">
<input type="text" name="username" />
<input type="submit" name="" value="提交" />
</form>
</body>
</html>
在表单输入: hello'wo;s'''
在浏览器执行结果为:
Array ( [username] => hello\'wo;s\'\'\' ) Array ( [username] => hello'wo;s''' ) Array ( [0] => 10 [1] => 4 [2] => 5 ) Array ( [0] => 1 [1] => 4 [2] => 5 )
而其他语言。比如c#,是引用传递
using System;
namespace Test
{
class Welcome
{
static void Main()
{
int i;
int[] array ={ 0, 1, 3, 4, 5 };
int[] b;
b = array;
array[1] = 89;
for (i = 0; i < b.Length; i++)
{
Console.WriteLine(b);
}
}
}
}
输入:
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