如何在超链接中发送字符串以填充表单中的字段？

Question

I need to have a value in a text field auto filled with a pre-selected variable. Can the string be sent through a hyperlink and be filled in to a html form "text" area?

    <form method="POST" action='googler.php'>
    <label for="query">Query</label><br/>
    <input name="query" type="text" size="60" maxlength="60" value="" /><br /><br /> 

In other words can the "value" be filled with something else If I have used a link to get to this page?

Answer 1

Nothing in a URL will cause a browser to auto-populate a field.

Any part of a URL (although a query string parameter is traditional) can be used by server side code to set the value attribute value when the HTML is generated.

value="<?php echo htmlspecialchars($_GET['foo']); ?>"