如何改变div的价值 [英] how can change value of a div

问题描述

"<div id="diva">this is div a</div>"
"<div id="divb"> this is div b</div>"

现在如何更改 div 通过按钮单击动态。这里还提到所有文本都来自数据库。当我点击按钮然后它检测到 div id并用欲望文本替换文本。

now how can I change the text of div dynamically by button click. here also mention that all text come from a database. when I click the button then it detects the div id and replace the text with desire text.

所有代码将在PHP中。

All code will be in PHP.

推荐答案

这将在页面加载后起作用：

This will work once the page is being loaded:

document.getElementById('diva').innerHTML = 
  <?php echo functionThatReturnsSomeValue(); ?>;

动态地，你需要在输出值的PHP文件上进行AJAX调用。如果使用jQuery之类的JS框架，而不是实现AJAX调用，那么你会更好。你自己。

Dynamically, you would need to do an AJAX call on the PHP file which outputs a value. You'd be better off if you used a JS framework such as jQuery, rather than implementing the AJAX call yourself.

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