js限制checkbox选项个数 php获取多个checkbbox的方法_PHP教程

WBOY
Release: 2016-07-20 11:13:17
Original
889 people have browsed it

1,js限制checkbbox勾选个数的代码:

<!DOCTYPE HTML <span PUBLIC</span> "-//W3C//DTD HTML 4.01 Transitional//EN" 
"http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 
<title>限制复选框选择的数量-www.jbxue.com-脚本学堂</title> 
<script type="text/javascript" > 
<span function</span> <span checkDate</span><span (n){ 
</span><span var</span> checkedCount=0<span ; 
</span><span for</span>(<span var</span> i=0;i<myForm.course.length ;i ++<span ){ 
</span><span if</span>(myForm.course[i].<span checked){ 
checkedCount</span>++<span ;

} 
} 
</span><span if</span>(checkedCount><span n){

alert(</span>"不能选超过三门课程"<span );

</span><span return</span> <span false</span><span ;

} 
}

</span></script> 
</head> 
<body> 
<form name="myForm" method="post" id="myForm" action="test.php"><span  
请选择这学期的选课(最多三门):</span><br> 
<input type="checkbox" name="course[]" value="语文" onClick="return checkDate(3)">语文<br> 
<input type="checkbox" name="course[]" value="数学" onClick="return checkDate(3)">数学<br> 
<input type="checkbox" name="course[]" value="英语" onClick="return checkDate(3)">英语<br> 
<input type="checkbox" name="course[]" value="化学" onClick="return checkDate(3)">化学<br> 
<input type="checkbox" name="course[]" value="物理" onClick="return checkDate(3)">物理<br> 
<input type="checkbox" name="course[]" value="政治" onClick="return checkDate(3)">政治<br> 
<input type="submit" value="提交"> 
<input type="reset" value="取消"> 
</form> 
</body> 
</html>
Copy after login

<?<span php
</span><span /*</span><span *
* 获取checkbox的值
* edit by www.jbxue.com
</span><span */</span>
<span $course</span>=<span $_POST</span>['course'<span ];
</span><span for</span>(<span $i</span>=0;<span $i</span><<span count</span>(<span $course</span>);<span $i</span>++<span ) 
{ 
</span><span if</span>(<span $course</span>[<span $i</span>]!=""<span ) 
{
</span><span echo</span> <span $course</span>[<span $i</span>]."<br/>"<span ;
} 
} 
</span>?>
Copy after login

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/440387.htmlTechArticle1,js限制checkbbox勾选个数的代码: !DOCTYPE HTML "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd" html head meta http-equiv="Content-Type"...
source:php.cn
Statement of this Website
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
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!