for the following php codes, how can i get the uploaded file information : file size, file type and number of pages for the file type are pdf, word, excel documents

================= will merge into docu_tray program gr_docutray_save.php for go-text project ==============================

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To get information about an uploaded file in PHP, including file size, file type, and the number of pages for PDF, Word, and Excel documents, you can follow these steps:

Step 1: File Upload Form
First, ensure you have an HTML form to upload files:

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<form action="upload.php" method="post" enctype="multipart/form-data">
    Select file to upload:
    <input type="file" name="fileToUpload" id="fileToUpload">
    <input type="submit" value="Upload File" name="submit">
</form>
Step 2: PHP Code to Handle the Upload
Here's the PHP code (upload.php) to handle the file upload and retrieve the required information:

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<?php
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $target_dir = "uploads/"; // Ensure this directory exists and is writable
    $target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
    $uploadOk = 1;
    $fileType = strtolower(pathinfo($target_file, PATHINFO_EXTENSION));

    // Check if the file is a valid upload
    if (isset($_FILES["fileToUpload"]) && $_FILES["fileToUpload"]["error"] === UPLOAD_ERR_OK) {
        // Get file size
        $fileSize = $_FILES["fileToUpload"]["size"];
        echo "File Size: " . $fileSize . " bytes<br>";

        // Get file type
        echo "File Type: " . $_FILES["fileToUpload"]["type"] . "<br>";

        // Move the uploaded file to the target directory
        if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
            echo "The file " . htmlspecialchars(basename($_FILES["fileToUpload"]["name"])) . " has been uploaded.<br>";
            
            // Get number of pages for specific file types
            switch ($fileType) {
                case 'pdf':
                    $pageCount = getPdfPageCount($target_file);
                    echo "Number of Pages (PDF): $pageCount<br>";
                    break;
                case 'doc':
                case 'docx':
                    $pageCount = getWordPageCount($target_file);
                    echo "Number of Pages (Word): $pageCount<br>";
                    break;
                case 'xls':
                case 'xlsx':
                    $pageCount = getExcelPageCount($target_file);
                    echo "Number of Pages (Excel): $pageCount<br>";
                    break;
                default:
                    echo "Unsupported file type for page count.<br>";
                    break;
            }
        } else {
            echo "Sorry, there was an error uploading your file.";
        }
    } else {
        echo "File upload error: " . $_FILES["fileToUpload"]["error"];
    }
}

// Function to get the number of pages in a PDF
function getPdfPageCount($filePath) {
    $pdf = new \Smalot\PdfParser\Parser();
    $pdfDocument = $pdf->parseFile($filePath);
    return count($pdfDocument->getPages());
}

// Function to get the number of pages in a Word document
function getWordPageCount($filePath) {
    $phpWord = \PhpOffice\PhpWord\IOFactory::load($filePath);
    // The number of pages is not straightforward; you may need to count sections or paragraphs.
    return count($phpWord->getSections());
}

// Function to get the number of pages in an Excel document
function getExcelPageCount($filePath) {
    $spreadsheet = \PhpOffice\PhpSpreadsheet\IOFactory::load($filePath);
    $pageCount = 0;
    foreach ($spreadsheet->getAllSheets() as $sheet) {
        $pageCount += $sheet->getHighestRow(); // Count rows as a basic measure
    }
    return $pageCount;
}
?>
Step 3: Install Required Libraries
To handle reading the contents of PDF, Word, and Excel files, you need to install the required libraries via Composer.

PDF Parser: For PDF files, you can use smalot/pdfparser.
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composer require smalot/pdfparser
PHPWord: For Word documents, use phpoffice/phpword.
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composer require phpoffice/phpword
PhpSpreadsheet: For Excel files, use phpoffice/phpspreadsheet.
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composer require phpoffice/phpspreadsheet
Summary
This PHP code allows you to upload files and retrieves their size and type. Additionally, it counts the number of pages in PDF, Word, and Excel documents using the appropriate libraries. Ensure that your server has the necessary permissions to upload files and that the specified uploads directory exists. Let me know if you have any questions or need further assistance!