[Resolved] Passing a form value to a php script

warmasice

<body>

<form name=form1 method="post">
Name of file you want to delete: <input type="text" name="file" value="">
<INPUT TYPE="button" value="Delete" onclick="go_there()">
</form>

Hi, does anyone have an idea on how I would pass the ‘file’ value from my form1 into my ‘delete.php’ script?

When a user enters a filename and clicks the Delete button, the ‘file’ value should be passed to the ‘delete.php’ script. But this script detects that the user has not entered a filename.

Been searching the net and can't seem to find a definative answer.

....p.s. its a semi php question, hope you dont mind! :p

Chris_Evans

$filename = $_GET['file'];

if($filename == "") {
    header("location: index.html");
}

// Now put the code here to delete the file
// bla bla bla
// bla bla bla

nunomira

hi,

as you have post in your form, it should be:

$filename = $_POST['file'];

and for chcking the existence and value of the variable you may also use [man]isset()[/man].

chrislead

Just wondering why you have got 'value=" "' as part of your input syntax? You are setting the value to nothing right from the beginning.

If it still doesn't work, (I may be sending you down the wrong line completely, lol. )

Then put an action on your form submit button to the script/destination page, then on ure script page, use:

$file = $POST['file'];
$SESSION['file'] = $file;

this variable, $file now contains the submitted value in the text box. u can the use this variable in your delete script.

P.S. may need to use sessions.

Hope some (if any) of this helps.

Chris_Evans

Originally posted by nunomira
hi,

as you have post in your form, it should be:
$filename = $_POST['file'];
and for chcking the existence and value of the variable you may also use [man]isset()[/man]. [/B]

Woops! Didn't even look at the form, lol.

warmasice

Edited (dont think i made sense so i'll reword it!...)

Thanks guys, nunomira hit the nail on the head. The php script now uses the data from the html form correctly.

nunomira (or anyone else), if the user submits and empty string in the php script, it doesnt reconise $file as ""

For example, I am using the following statements to deal with the submitted value to this script:

if($file == "")
echo("You did not enter a file name. Please try again");

if($file != "")
{
Some code here
}

The 1st if statement never works, even if a user doesnt enter a string from the html form.

note: I am using $_POST['file'] in my html form.

Can someone help?

nunomira

Try this:

<?php
$file = $_POST['file'];
if (!isset ($file) || $file == '')
{
	// do something
}
else
{
	// do something else
}
?>