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cant upload file to directory php

Malario answered on August 31, 2021 Popularity 9/10 Helpfulness 3/10

answer cant upload file to directory php

related php file upload to server folder

cant upload file to directory php

Comment

You'd better check $_FILES structure and values throughly.
The following code cannot cause any errors absolutely.

Example:
<?php

header('Content-Type: text/plain; charset=utf-8');

try {
    
    // Undefined | Multiple Files | $_FILES Corruption Attack
    // If this request falls under any of them, treat it invalid.
    if (
        !isset($_FILES['upfile']['error']) ||
        is_array($_FILES['upfile']['error'])
    ) {
        throw new RuntimeException('Invalid parameters.');
    }

    // Check $_FILES['upfile']['error'] value.
    switch ($_FILES['upfile']['error']) {
        case UPLOAD_ERR_OK:
            break;
        case UPLOAD_ERR_NO_FILE:
            throw new RuntimeException('No file sent.');
        case UPLOAD_ERR_INI_SIZE:
        case UPLOAD_ERR_FORM_SIZE:
            throw new RuntimeException('Exceeded filesize limit.');
        default:
            throw new RuntimeException('Unknown errors.');
    }

    // You should also check filesize here. 
    if ($_FILES['upfile']['size'] > 1000000) {
        throw new RuntimeException('Exceeded filesize limit.');
    }

    // DO NOT TRUST $_FILES['upfile']['mime'] VALUE !!
    // Check MIME Type by yourself.
    $finfo = new finfo(FILEINFO_MIME_TYPE);
    if (false === $ext = array_search(
        $finfo->file($_FILES['upfile']['tmp_name']),
        array(
            'jpg' => 'image/jpeg',
            'png' => 'image/png',
            'gif' => 'image/gif',
        ),
        true
    )) {
        throw new RuntimeException('Invalid file format.');
    }

    // You should name it uniquely.
    // DO NOT USE $_FILES['upfile']['name'] WITHOUT ANY VALIDATION !!
    // On this example, obtain safe unique name from its binary data.
    if (!move_uploaded_file(
        $_FILES['upfile']['tmp_name'],
        sprintf('./uploads/%s.%s',
            sha1_file($_FILES['upfile']['tmp_name']),
            $ext
        )
    )) {
        throw new RuntimeException('Failed to move uploaded file.');
    }

    echo 'File is uploaded successfully.';

} catch (RuntimeException $e) {

    echo $e->getMessage();

}

?>

Popularity 9/10 Helpfulness 3/10 Language php

Source: www.php.net

Tags: directory file php upload

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Contributed on Aug 31 2021

Malario

0 Answers Avg Quality 2/10

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php file upload to server folder

Comment

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $targetDirectory = "images/"; // Specify the target directory where you want to save the uploaded images
    $targetFile = $targetDirectory . basename($_FILES["fileToUpload"]["name"]); // Get the target file path

    // Check if the file already exists
    if (file_exists($targetFile)) {
        echo "File already exists. Please choose a different file.";
    } else {
        // Check file size or other validation criteria if needed
        // Move the uploaded image to the target directory
        if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $targetFile)) {
            echo "The image " . htmlspecialchars(basename($_FILES["fileToUpload"]["name"])) . " has been uploaded.";
        } else {
            echo "Sorry, there was an error uploading your image.";
        }
    }
}
?>

<!DOCTYPE html>
<html>
<head>
    <title>Image Upload Form</title>
</head>
<body>
    <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" enctype="multipart/form-data">
        Select Image to Upload:
        <input type="file" name="fileToUpload" id="fileToUpload">
        <input type="submit" value="Upload Image" name="submit">
    </form>
</body>
</html>

Popularity 9/10 Helpfulness 8/10 Language php

Source: Grepper

Tags: file-upload file

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Contributed on Oct 30 2023

Different Dotterel

0 Answers Avg Quality 2/10

cant upload file to directory php

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