How to respond to button onclick event in php
PHP is server-side code, and html is client-side code. To implement the button's onclick event, the client calls the server-side function, so it must submit a request to the server.
There is a simple and crude way, that is, when the button is an a tag, you can directly write the PHP page to be executed in the href (or jump to PHP through JS by binding window.location to the button). This approach requires designing a PHP code for each button.
My approach is: bind the click event to the button with event ajax, and then execute ajax.
Example:
server.php
<?php
if (isset($_POST['action']))
{
switch($_POST['action'])
{
case "btn1":btn1();break;
case "btn2":btn2();break;
default:break;
}
}
function btn1()
{
echo "hello 按钮1";
}
function btn2()
{
echo "hello 按钮2";
}
?>index.php
<html>
<head>
<style>
div {width:600px;margin:200px auto;}
.btn {
background-color:#44c767;
-moz-border-radius:28px;
-webkit-border-radius:28px;
border-radius:28px;
border:1px solid #18ab29;
display:inline-block;
cursor:pointer;
color:#ffffff;
font-family:Arial;
font-size:17px;
padding:16px 31px;
text-decoration:none;
text-shadow:0px 1px 0px #2f6627;
}
.btn:hover {
background-color:#5cbf2a;
}
.btn:active {
position:relative;
top:1px;
}
#btn2 {float:right;}
</style>
<script type="text/javascript" language="javascript" src="jquery.js"></script>
<script type="text/javascript" language="javascript">
function fun(n) {
$.ajax({
url:"server.php", //the page containing php script
type: "POST", //request type
data:{action: n.value},
success:function(result){
alert(result);
}
});
}
function fun2(n) {
var url = "server.php";
var data = {
action : n.value
};
jQuery.post(url, data, callback);
}
function callback(data) {
alert(data);
}
</script>
</head>
<body>
<div>
<button type="button" class="btn" id="btn1" οnclick="fun(this)" value="btn1">按钮1</button>
<button type="button" class="btn" id="btn2" οnclick="fun2(this)" value="btn2">按钮2</button>
</div>
</body>
</html>Recommended tutorial:php tutorial
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