自动提交表格一次

本文介绍了自动提交表格一次的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我做了一个表格，当页面打开时我需要自动提交. 我已经尝试过此javascript代码，但是它的作用是创建一个循环，在该循环中，表单可以无限次提交而不会停止.我需要在打开页面时仅提交一次表单的代码.请给我一个建议.

I have made a form which I need to self submit automatically when page is opened. I have tried this javascript code but what it does it creates a loop where form is submitted unlimited time without stop. I need the code where form would be submitted only once when page is opened. Please give me an advice.

<form id="form" action="form.php" method="POST" > <select id="main" name="main"> <option value="1" <?php if (@$_POST['main']=='1') {echo "selected='selected'"; } ?>>One</option> <option value="2" <?php if (@$_POST['main']=='2') {echo "selected='selected'"; } ?>>Two</option> </select> </form> <script> document.getElementById("form").submit(); </script>

推荐答案

您可以检查表单以前是否使用POST超全局提交

You can check if the form was previously submitted with the POST superglobal

<form id="form" action="form.php" method="POST" > <select id="main" name="main"> <option value="1" <?php if (@$_POST['main']=='1') {echo "selected='selected'"; } ?>>One</option> <option value="2" <?php if (@$_POST['main']=='2') {echo "selected='selected'"; } ?>>Two</option> </select> </form> <?php if ( ! isset($_POST['main']) ) { // not submitted yet ?> <script> document.getElementById("form").submit(); </script> <?php } ?>