php问两个简单问题(json/php加密)
1:我看一些大网站源码里总有一些这样
$t={ "programmers": [
{ "firstName": "Brett", "lastName":"McLaughlin", "email": "aaaa" },
{ "firstName": "Jason", "lastName":"Hunter", "email": "bbbb" },
{ "firstName": "Elliotte", "lastName":"Harold", "email": "cccc" }
],
"authors": [
{ "firstName": "Isaac", "lastName": "Asimov", "genre": "science fiction" },
{ "firstName": "Tad", "lastName": "Williams", "genre": "fantasy" },
{ "firstName": "Frank", "lastName": "Peretti", "genre": "christian fiction" }
],
"musicians": [
{ "firstName": "Eric", "lastName": "Clapton", "instrument": "guitar" },
{ "firstName": "Sergei", "lastName": "Rachmaninoff", "instrument": "piano" }
] }
这些json数据如何使用呢,为啥不用模板的时候就全替换好呢,有啥好处?
2:PHP想加密两串字符串
一是页面间用户识别的SESSION如何处理好更安全,传个用户名md5值再加一位数字好吗?
二是想加一串URL后面的/gallery/abcdefg12345.jpg
jpg可以静态去掉,这个图片名称加成啥好看些
------解决方案--------------------
1,就是普通的json串啊,你想表达什么意思,json_encode,json_decode。
2,一,SESSION在服务端,本来就安全。 二,可以重写,不过有意义吗,谁会去重写静态图片?
------解决方案--------------------
google:json 数据库。
------解决方案--------------------
加密就那么几种,看着有用的来就行,要高级加密那就涉及密钥了:
- PHP code
$str1 ="abcabc123123";//加为纯数字或是纯字母$str2 = "我是中国人";//这句也一样有效吗echo md5($str1)."<br>"; #8709a6a92a8d441868d916b9ea2c07c2echo md5($str2)."<br>"; #512d1643ba2878bc9c9f8f4f492673dfecho urlencode($str1)."<br>"; #abcabc123123echo urlencode($str2)."<br>"; #%E6%88%91%E6%98%AF%E4%B8%AD%E5%9B%BD%E4%BA%BAecho base64_encode($str1)."<br>"; #YWJjYWJjMTIzMTIzecho base64_encode($str2)."<br>"; #5oiR5piv5Lit5Zu95Lq6<div class="clear"> </div>

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php提交表单通过后,弹出的对话框怎样在当前页弹出php提交表单通过后,弹出的对话框怎样在当前页弹出而不是在空白页弹出?想实现这样的效果:而不是空白页弹出:------解决方案--------------------如果你的验证用PHP在后端,那么就用Ajax;仅供参考:HTML code<form name="myform"


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