how protect forms from html or javascript?

[kazuki]

Hi,

Creating forms is one thing, I just want to know
on how protect <textarea> or field from html
or javascript. That would be great
if any suggestions.

[Bunkermaster]

hmmm could you be more specific? Protect as in not being able to type in it or...?

[TTT]

i assume that you mean disable to type in textarea
<textarea disabled></textarea>

or if you want that textarea if disabled only when other field is not filled (i think it's onfocus)
<script>
function checkField()
{
if(document.formName.fillFirst.lenght == 0)
{
alert("fill fillFirst field first 🙂)");
document.formName.fillFirst.focus();
}
else
{
return true;
}
}
</script>
<form>
<input type="text" name="fillFirst">

<textarea onfocus="return checkField();">

[kazuki]

Oh, I mean of the <textarea> field that they cannot
put an html code inside the field that the browser won't
interpret it. It will be as plain text instead.

😕

[MrAlaska]

There are a few ways you could go about it. I think the simplest is to run the string through htmlspecialchars()
http://www.php.net/manual/en/function.htmlspecialchars.php