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Home Backend Development PHP Tutorial echo 出的input 不能调用onclick事件 求高手

echo 出的input 不能调用onclick事件 求高手

Jun 23, 2016 pm 02:16 PM

<script> <br /> function CheckAll(form) { <br /> for (var i=0;i<form.elements.length;i++) { <br /> var e = form.elements[i]; <br /> if (e.name != 'chkall') e.checked = form.chkall.checked; <br /> } <br /> } <br /> <br /> </script>
require_once 'SqlHelper.class.php';
$SqlHelper=new SqlHelper();
$sql="select * from user1";
$res=$SqlHelper->execute_dql($sql);
$fields=mysql_num_fields($res);
$rows=mysql_num_rows($res);
echo "

";
echo "";
for($i=0;$i $fieldname=mysql_field_name($res,$i);
echo "";
}
echo "";
$num=1;
while($row=mysql_fetch_row($res)){
echo "";
echo "";
for($i=0;$i echo "";
}
echo "";
$num++;
}
echo "
$fieldname
$row[$i]
";
?>

为什么 onclick=CheckAll(this.form) 调用js不管用呢

回复讨论(解决方案)

目的是做个批量删除  点击全选按钮就全部选中 可是不能使用

没有看到 form 标记

另外 echo "

"; 也不符合 php 的约定

前辈能帮忙改一下吗 小弟目前初学很多不是很明白

目前用html显示php读取出的数据 不知道怎么处理  总是 echo 

  确实是很麻烦 请问有什么好方法吗

这种问题其实最适合初学者上手来解决

首先你需要firefox浏览器和firebug插件

然后按F12开启这个插件刷新页面

然后"控制"这一栏里如果JS出错就会报错,哪里有问题之类

如果没报错,那就点一下你这个按钮 然后就会发现错误

比如我把你这个文件运行,点击那个input后出现



就是这个form未定义

版主一针见血

我们没这个能力 那firebug就会帮助我们  特别特别的有用 强烈推荐

目前用html显示php读取出的数据 不知道怎么处理  总是 echo 

  确实是很麻烦 请问有什么好方法吗

这就是程序和视图未分离的麻烦   稍微去研究下MVC或者smarty模板  将程序和视图分离  只在视图中需要输出数据的地方来echo数据  html标签都直接写.
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