只需单击一个按钮即可调用php函数 [英] call a php function with a click of a button

问题描述

如何使用ajax或javascript或jquery调用php函数？

how do you call a php function with ajax or javascript or jquery?

这是我的php脚本

function submitmessage() {
    $sent = date(y-m-d-h-m-s);
    $message = $_POST['message'];
    $query = "INSERT INTO chatbox (from,to,message,sent)                            
    VALUES('$fullname','$to','$message','$sent')";
    mysql_query($query) or die(mysql_error());
}

推荐答案

拥有AJAX的文件呼叫连接在服务器上可用。

Have the file that the AJAX call connects to be available on the server.

所以假设你的功能在文件中：functions.inc.php

So lets say your function is in the file: functions.inc.php

你可以有一个包含functions.inc.php的php文件并调用submitmessage函数。

You could have a php file that includes the functions.inc.php and calls the submitmessage function.

ajax_responder.php：

ajax_responder.php:

require_once 'functions.inc.php';    

if(!empty($_POST)) {
    submitmessage();
}

现在您可以使用ajax_responder.php的URL来提交消息。

Now you can use the URL to the ajax_responder.php to submit messages.

将jQuery包含或写入页面，格式为：

With jQuery included or written into the page with form:

function submitmessage(){
    $.post("url_path/ajax_responder.php", { fullname: document.chatbox.fullname.value, message: document.chatbox.message.value } );
}

然后，您不必提交表单，而是将提交按钮更改为按钮调用submitmessage javascript：

Then, instead of submitting a form, you change your submit button into a button that calls the submitmessage javascript:

<button onclick="submitmessage()">Submit Message</button>

作为附注，为了安全起见，我建议您使用POST数据做更多事情以确保你没有得到 SQL注入。由于您已经在使用mysql函数，可以尝试 mysql_real_escape_string 。

As a side note, for security, I recommend that you do something more with the POST data to ensure that you do not get SQL injection. Since you are already using mysql functions you could try mysql_real_escape_string.

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