带有预设变量的HTML帖子表单

Question

I'll try and explain this as best as I can. Basically, I'm using a form to receive a comment. Upon hitting submit, the action creates a link similar to this: http://localhost:8080/camagru/comment.php?comment=test&post=Post

I have a variable with the image name in it that I want to pass as well, so something like this: http://localhost:8080/camagru/comment.php?img=test.png&comment=test&post=Post

I've tried using <form action="<?php echo commentpost.php?img=$img?>"> But everytime the submit button is pressed, it erases the img variable from POST and only puts in the new variables from the form.

Any suggestions?

Answer 1

add new hidden field in form tag like that

<form action="commentpost.php" method="post">    
    <input type="hidden" value="<?php echo $img ?>" name="img" />
    <input type="submit" value="Save" name="IsSubmit" />
</form>

Now you can able to use $_POST['img']