check if a file is exist in folder

sigmahokies · April 3, 2019

Hi everyone, I'm still learning, but getting intermediate in PHP now, but it is still challenge to learn. I'm trying to have php check to see if one file inside folder in server, seem I could not get it right, but I tested it on other site, it works, but not this script, I don't understand why it won't work...maybe logical is wrong?

here my code:

	if ($_POST['video']) {
	        $path1 = "UPLOADS/Home/";
        $path2 = "UPLOADS/Breakfast/";
        $path3 = "UPLOADS/Spider/";
	        $scan1 = scandir($path1);
        $scan2 = scandir($path2);
        $scan3 = scandir($path3);
	        $count1 = count($scan1) - 3;
        $count2 = count($scan2) - 3;
        $count3 = count($scan3) - 3;
	        if($count1 > 0) {
            header('location:exist.html');
        }elseif ($count2 > 0) {
            header('location:exist.html');
        }elseif ($count3 > 0) {
            header('location:exist.html');
        }

But other site, it works:

	$scan = scandir($path);
$count = count($scan) - 3;
	echo $count;
	if($count > 1){
    echo "Hello yourself!<br />";
}

Anyone will help will be appreciate! Thank you!

Gary

gw1500se · April 3, 2019

What part is not working? What error message are you getting?

sigmahokies · April 3, 2019

Hi gw1500se,

This part is not work to not send to other site name 'exist.html' if php find one video is inside folder in server. I notice server is still taking uploading file when file is exist already in folder. I'm trying to stop upload file into folder when there is one video or document inside folder already.

gw1500se · April 3, 2019

It is not clear what you are saying. We need to see all of the code. Post the HTML where you upload the file then the code that moves it to the UPLOADS directory.

ginerjm · April 3, 2019

Not sure how you determine that a file exists or not. Normally we would use the is_file function to specifically look for a filename in a folder. Have you tried that approach instead of a counting method?

sigmahokies · April 3, 2019

All right gw1500se,

Here my full code, but it is three file different. one html and two php. I use php file to upload video, I use one html to let anyone know (display on monitor) that file is exist in folder.

upload file first:

	<?php
	?>
<!doctype html>
        <html>
        <head>
            <link href="css/upload.css" rel="stylesheet" type="text/css">
        </head>
        <body>
        <form action="upload.php" method="post" enctype="multipart/form-data">
            <table class="table">
                <tr>
                    <td colspan="2" align="center" class="children"><label for="file1">Children:</label></td>
                </tr>
                <tr>
                    <td>First Name:</td>
                    <td><input type="text" name="first" required></td>
                </tr>
                <tr>
                    <td>Last Name:</td>
                    <td><input type="text" name="last" required></td>
                </tr>
                <tr>
                    <td>School Name:</td>
                    <td><input type="text" name="school" required></td>
                </tr>
                <tr>
                    <td>Grade:</td>
                    <td><select name="grade">
                            <option value="3">3</option>
                            <option value="4">4</option>
                            <option value="5">5</option>
                            <option value="6">6</option>
                            <option value="7">7</option>
                        </select></td>
                </tr>
                <tr>
                    <td>Age:</td>
                    <td><input type="text" name="age" required></td>
                </tr>
                <tr>
                    <td>Test Video:</td>
                    <td><input type="radio" name="videos" value="Home">Home Alone</td>
                </tr>
                <tr>
                    <td>&nbsp;</td>
                    <td><input type="radio" name="videos" value="Breakfast">Tiffany Breakfast</td>
                </tr>
                <tr>
                    <td>&nbsp;</td>
                    <td><input type="radio" name="videos" value="Spider">Spider</td>
                </tr>
                <tr>
                    <td class="lowerfont">Upload your video</td>
                    <td><input type="file" name="file1" id="file1"></td>
                </tr>
	                <tr>
                    <td>&nbsp;</td>
                    <td><input type="submit" name="video" value="Upload your video"></td>
                </tr>
            </table>
        </form>
        <h2><a href="deletevideo.php" style="margin-left: 550px; color: white; text-decoration: none;">Go to Delete
                Video site</a></h2>
        <h2><a href="list.html" style="margin-left: 550px; color: white; text-decoration: none;">Return to list site</a>
        </h2>
        <div class="check"></div>
        </body>
        </html>

now, run to upload site...

[/php]

	<?php
	require ("access.php");
	// if the form was posted,    process the upload
if ($_POST['video']) {
	        $path1 = "UPLOADS/Home/";
        $path2 = "UPLOADS/Breakfast/";
        $path3 = "UPLOADS/Spider/";
	        $scan1 = scandir($path1);
        $scan2 = scandir($path2);
        $scan3 = scandir($path3);
	        $count1 = count($scan1) - 3;
        $count2 = count($scan2) - 3;
        $count3 = count($scan3) - 3;
	        if($count1 !== 0) {
            header('location:exist.html');
        }elseif ($count2 !== 0) {
            header('location:exist.html');
        }elseif ($count3 !== 0) {
            header('location:exist.html');
        }
	    $first = $_POST['first'];
    $last = $_POST['last'];
    $school = $_POST['school'];
    $age = $_POST['age'];
    $grade = $_POST['grade'];
    $option = $_POST['videos'];
	    if ($option == "Home") {
        $fileToMove = $_FILES['file1']['tmp_name'];
        $destination = "UPLOADS/Home/" . $_FILES['file1']['name'];
    } elseif ($option == "Breakfast") {
        $fileToMove = $_FILES['file1']['tmp_name'];
        $destination = "UPLOADS/Breakfast/" . $_FILES['file1']['name'];
    } elseif ($option == "Spider") {
        $fileToMove = $_FILES['file1']['tmp_name'];
        $destination = "UPLOADS/Spider/" . $_FILES['file1']['name'];
    }
	        if ($first && $last && $school && $age && $grade && $option) {
            $GaryDB->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
            $exec = $GaryDB->prepare("insert into Children (`FirstName`, `LastName`, `School`, `Grade`, `Age`) values (:firstN, :lastN, :school, :grade, :age)");
	            $exec->bindValue(':firstN', $first, PDO::PARAM_STR);
            $exec->bindValue(':lastN', $last, PDO::PARAM_STR);
            $exec->bindValue(':school', $school, PDO::PARAM_STR);
            $exec->bindValue(':grade', $grade, PDO::PARAM_STR);
            $exec->bindValue(':age', $age, PDO::PARAM_STR);
            $exec->execute();
	            if (move_uploaded_file($fileToMove, $destination)) {
                header('location: uploaded.html');
            } else {
                header('location: failupload.html');
            }
        }
    }
?>

Now, exist.html...

	<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Exist video</title>
    <link href="css/upload.css" rel="stylesheet" type="text/css">
</head>
<body>
<h2>There is video inside, you need to delete it to first.</h2>
<h2><a href="deletevideo.php">Delete site</a></h2>
</body>
</html>

that's my full code in html and php

gw1500se · April 4, 2019

Ginerjm is right. Your code does not determine if a specific filename exists. You need to rewrite it, using much simpler code that just checks to see if that filename (is_file) exists. It is also a bit confusing whether or not the same filename can exist in the different directories you are checking.

jodunno · April 8, 2019

also be sure to use exit; after a header redirect or the rest of the php file will be executed.

$count3 = count($scan3) - 3;
	        if($count1 !== 0) {
            header('location:exist.html'); exit;
        }elseif ($count2 !== 0) {
            header('location:exist.html'); exit;
        }elseif ($count3 !== 0) {
            header('location:exist.html'); exit;
        }

ginerjm · April 8, 2019

Or you could write your code like this:

$count3 = count($scan3) - 3;
if($count1 !== 0) 
{
	header('location:exist.html'); 
	exit;
}
elseif ($count2 !== 0) 
{
	header('location:exist.html'); 
	exit;
}
elseif ($count3 !== 0) 
{
	header('location:exist.html'); 
	exit;
}

While the tabs in this forum are a bit wider than I would like to see, writing your code in simple straight one-command lines is much better to read. My personal choice is to use the curly braces each on their own line as well - again to make it easy on the eyes. NEVER put 2 commands on one line.

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