php基础教程——学习小结
php基础教程——学习总结
一、php和表单
1.POST方法手动发送数据:
二者部分区别:
GET:
1.将信息聚集起来作为URL一部分传送
2.传送数量有限
3.公开传送,诸如密码信息会暴露
4.创建的表单可以添加为书签。
POST:
1.传递的信息用户看不到
用法示例:
html文件:ws.html
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>test</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>test</title>
<?phpini_set ('display_errors', 1);error_reporting(E_ALL|E_STRICT);$title=$_POST['title'];$name =$_POST['name'];</span>print "<p> hello $title $name";?> </p>
结果:hello Mr myname
2.GET传送数据
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>test</title>
php文件:handle.php
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>test</title>
<?phpini_set ('display_errors', 1);error_reporting(E_ALL|E_STRICT);$name=$_GET['name'];print "hello $name";?>
二、相关函数学习
1.格式化数值:
round(要格式化的数字 , 保留小数点位数);
eg:$test=5.555555555; round(test, 2); // 5.55
number_format(数字, 小数点位数, 代替小数点的符号, 千位分隔符)
eg:number_format("10000000", 2 ,"," ,".");// 10.000.000,00
2.随机函数rand()
eg:rand(0, 100);//产生0-100 随机一个数

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