使用onclick执行PHP函数 [英] Execute PHP function with onclick
问题描述
我正在寻找一种仅单击 a-tag 即可调用 PHP函数的简单解决方案.
I am searching for a simple solution to call a PHP function only when a-tag is clicked.
PHP:
function removeday() { ... }
HTML:
<a href="" onclick="removeday()" class="deletebtn">Delete</a>
更新:html和PHP代码位于同一PHP文件中
UPDATE: the html and PHP code are in the same PHP file
推荐答案
首先，请了解您有三种语言可以共同工作:
First, understand that you have three languages working together:
-
PHP:它仅由服务器运行，并响应诸如单击链接(GET)或提交表单(POST)之类的请求.
PHP: It only runs by the server and responds to requests like clicking on a link (GET) or submitting a form (POST).
HTML& JavaScript:它只能在某人的浏览器(不包括NodeJS)中运行.
HTML & JavaScript: It only runs in someone's browser (excluding NodeJS).
我假设您的文件如下所示:
I'm assuming your file looks something like:
<!DOCTYPE HTML>
<html>
<?php
function runMyFunction() {
echo 'I just ran a php function';
}
if (isset($_GET['hello'])) {
runMyFunction();
}
?>
Hello there!
<a href='index.php?hello=true'>Run PHP Function</a>
</html>
因为PHP仅响应请求(通过$ _REQUEST进行的GET，POST，PUT，PATCH和DELETE)，所以即使它们位于同一文件中，这也是您必须运行PHP函数的方式.这为您提供了一定程度的安全性，我是否应该为此用户运行此脚本?".
Because PHP only responds to requests (GET, POST, PUT, PATCH, and DELETE via $_REQUEST), this is how you have to run a PHP function even though they're in the same file. This gives you a level of security, "Should I run this script for this user or not?".
如果您不想刷新页面，则可以通过一种称为异步JavaScript和XML(AJAX)的方法来向PHP发出请求而无需刷新.
If you don't want to refresh the page, you can make a request to PHP without refreshing via a method called Asynchronous JavaScript and XML (AJAX).
这是您可以在YouTube上查找的内容.只需搜索"jquery ajax"
That is something you can look up on YouTube though. Just search "jquery ajax"
我向所有新手推荐Laravel，以使其开始: http://laravel.com/
I recommend Laravel to anyone new to start off right: http://laravel.com/
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