文本框onchange调用php函数 [英] textbox onchange call php function

问题描述

如何从HTML表单文本框中的onchange调用php函数?我尝试过

How can i call a php function from onchange on an html form textbox? I have tried

<input onchange="phpfunction()" ..... >

<?php
function phpfunction() {
my function
}
?>

有帮助吗?我似乎无法弄清楚.

Any Help? I Can't seem to figure it out.

谢谢

推荐答案

您必须进行ajax调用并将其发布到PHP.

You have to do an ajax call and post that your PHP.

示例:

HTML:

<input name="blah" onchange="mainInfo(this.value);">

JavaScript函数(AjaX)

function mainInfo(id) {
    $.ajax({
        type: "GET",
        url: "dummy.php",
        data: "mainid =" + id,
        success: function(result) {
            $("#somewhere").html(result);
        }
    });
};

PHP

<?php
    if(isset($_GET['mainid'])){
        mainInfo($_GET['mainid']);
    }
?>

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