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PHP网站开发中常用的8个小技巧，php网站开发小技巧_PHP教程

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Release： 2016-07-13 10:06:29
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PHP网站开发中常用的8个小技巧，php网站开发小技巧

PHP是一种用于创建动态WEB页面的服务端脚本语言。如同ASP和ColdFusion，用户可以混合使用PHP和HTML编写WEB页面，当访 问者浏览到该页面时，服务端会首先对页面中的PHP命令进行处理，然后把处理后的结果连同HTML内容一起传送到访问端的浏览器。但是与ASP或 ColdFusion不同，PHP是一种源代码开放程序，拥有很好的跨平台兼容性。用户可以在Windows NT系统以及许多版本的Unix系统上运行PHP，而且可以将PHP作为Apache服务器的内置模块或CGI程序运行。 本文总结了PHP日常开发中常用的8个小技巧。

PHP批最取得checkbox的值

1、命名

复制代码 代码如下:

$expr = join(“,”, $_POST['checkbox']);
$sql = “select * from tbl_name where field in ($expr)”;
}

如果参与控制的字段是数值型的，则
复制代码 代码如下:

if(! empty($_POST['checkbox'])) {
$expr = “‘”.join(“‘,'”, $_POST['checkbox']).”.”;
$sql = “select * from tbl_name where field in ($expr)”;
}

3、PHP判断Form表单是否提交
复制代码 代码如下:

$action=$HTTP_POST_VARS["Button1"];

if($action==”提交”)
{
//执行表单操作
}
else
{
//读取默认值
}


4、PHP 获取字符串长度
复制代码 代码如下:

strlen($myrow[1])

PHP Url转向
复制代码 代码如下:

Header(“Location: “.$_SERVER["HTTP_REFERER"]);

5、PHP超全局对象
复制代码 代码如下:

$a = 1;
$b = 2;
function Sum()
{
$GLOBALS["b"] = $GLOBALS["a"] + $GLOBALS["b"];
}
Sum();
echo $b;
?>

6、PHP 表单取值

如果  mothod=”get”  就用  $_GET["test"]  代替$test

如果  mothod=”post”  就用  $_POST["test"]  代替$test

7、PHP取得当前IP

复制代码 代码如下:



8、PHP 取得当前时间
复制代码 代码如下:

echo date(“Y-m-d G:i:s”);
?>
date(“Y年m月d日”)
Date (“Y-n-j”)

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