使用javascript获取文本字段的值，并将其发布到表单的操作中

Question

hi i have a PHP page
and i want to take the value of the text field and post it in the action or in the url
i want to put the page number in the url
i am numbering the pages

<form action="<?php echo $_SERVER['PHP_SELF']."?&p=$pgNumber"; ?>" method="post" name="page" >
Go to page: <input name="productid" type="text" size="3" />
<input name="Go" type="submit" value="Go" onclick="<?php $pgNumber=$_GET['productid']; ?>" />
</form>

but PHP is server side so i should put a javascript function which add "?&p=6" at the end of the url the "p" is the page number

please guys i know nothing about javascript

thanks in advanced!

Answer 1

Have such form tag instead:

<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" name="page" onsubmit="this.action += '?p=' + this.elements['productid'].value;">

This will append the value of the textbox to the submitted URL and still preserve the POST method.