Home  >  Article  >  Backend Development  >  PHP 日常开发小技巧_PHP教程

PHP 日常开发小技巧_PHP教程

WBOY
WBOYOriginal
2016-07-21 15:43:43807browse

PHP批最取得checkbox的值
1、命名

2、使用
当计划当作sql指令的一部分时:如果参与控制的字段是数值型的,则
if(! empty($_POST['checkbox'])) {
$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
if(! empty($_POST['checkbox'])) {
$expr = "'".join("','", $_POST['checkbox']).".";
$sql = "select * from tbl_name where field in ($expr)";
}
PHP判断Form表单是否提交
$action=$HTTP_POST_VARS["Button1"];
if($action=="提交")
{
//执行表单操作
}
else
{
//读取默认值
}
PHP 获取字符串长度
strlen($myrow[1])
PHP Url转向
Header("Location: ".$_SERVER["HTTP_REFERER"]);
PHP超全局对象
$a = 1;
$b = 2;
function Sum()
{
$GLOBALS["b"] = $GLOBALS["a"] $GLOBALS["b"];
}
Sum();
echo $b;
?>
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
PHP取得当前IP
=$HTTP_SERVER_VARS["REMOTE_ADDR"]?>
PHP 取得当前时间
echo date("Y-m-d G:i:s");
?>
date("Y年m月d日")
Date ("Y-n-j")

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/320687.htmlTechArticlePHP批最取得checkbox的值 1、命名 input type='checkbox' name='checkbox[]' value=$dwmyrow[banzhu] / 2、使用 当计划当作sql指令的一部分时:如果参与控制的字...
Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn