HTML表单填充了post参数字符串。 字符串被截断

Question

I have an html form (form2) with variable called cat:

<input type="text" name="cat" value=<?php echo $_POST['cat']; ?>><br> <b>

File A ---> File B

File A gets input from form1 and posts to File B, which has a form called form2.

This form gets the POST variables from form1, and uses them, but also takes in some additional input. Cat, which I can see bc it's input type is text is truncated for some reason. Even though cat is normally only 1400 characters, it is truncated down to 164 for some reason. Why/How do I fix this?

Answer 1

You need to enclose value's value in quotes, as such:

value=<?php echo $_POST['cat']; ?>

to

value="<?php echo htmlentities($_POST['cat']); ?>"