ByteScout Cloud API Server – PDF To HTML API – PHP – Convert PDF To HTML Asynchronously

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ByteScout Cloud API Server – PDF To HTML API – PHP – Convert PDF To HTML Asynchronously

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ByteScout-Cloud-API-Server-PHP-Convert-PDF-To-HTML-Asynchronously.pdf

How to convert PDF to HTML asynchronously for PDF to HTML API in PHP with ByteScout Cloud API Server

Step By Step Instructions on how to convert PDF to HTML asynchronously for PDF to HTML API in PHP

On this page, you will find sample source codes which show you how to handle a complex task, such as, PDF to HTML API in PHP. PDF to HTML API in PHP can be applied with ByteScout Cloud API Server. ByteScout Cloud API Server is the ready to deploy Web API Server that can be deployed in less than thirty minutes into your own in-house Windows server (no Internet connnection is required to process data!) or into private cloud server. Can store data on in-house local server based storage or in Amazon AWS S3 bucket. Processing data solely on the server using built-in ByteScout powered engine, no cloud services are used to process your data!.

If you want to speed up the application’s code writing then PHP code samples for PHP developers help to implement using ByteScout Cloud API Server. For implementation of this functionality, please copy and paste the code below into your app using code editor. Then compile and run your app. Check PHP sample code examples to see if they respond to your needs and requirements for the project.

ByteScout Cloud API Server – free trial version is available on our website. Also, there are other code samples to help you with your PHP application included into trial version.

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pdf-to-html-async.php

      <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Cloud API asynchronous "PDF To HTML" job example (allows to avoid timeout errors).</title>
</head>
<body>

<?php 

// Cloud API asynchronous "PDF To HTML" job example.
// Allows to avoid timeout errors when processing huge or scanned PDF documents.

// Please NOTE: In this sample we're assuming Cloud Api Server is hosted at "https://localhost". 
// If it's not then please replace this with with your hosting url.

// Direct URL of source PDF file. Check another example if you need to upload a local file to the cloud.
$sourceFileUrl = "https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/pdf-to-text/long-processed-document.pdf";
// Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'.
$pages = "";
// PDF document password. Leave empty for unprotected documents.
$password = "";
// Set to `true` to get simplified HTML without CSS. Default is the rich HTML keeping the document design.
$plainHtml = false;
// Set to `true` if your document has the column layout like a newspaper.
$columnLayout = false;


// Prepare URL for `PDF To XLSX` API call
$url = "https://localhost/pdf/convert/to/html" .
    "?url=" . $sourceFileUrl .
    "&password=" . $password .
    "&pages=" . $pages .
    "&simple=" . $plainHtml .
    "&columns=" . $columnLayout .
    "&async=true"; // (!) Make asynchronous job

// Create request
$curl = curl_init();

curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

// Execute request
$result = curl_exec($curl);

if (curl_errno($curl) == 0)
{
    $status_code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
    
    if ($status_code == 200)
    {
        $json = json_decode($result, true);
        
        if ($json["error"] == false)
        {
            // URL of generated HTML file that will available after the job completion
            $resultFileUrl = $json["url"];
            // Asynchronous job ID
            $jobId = $json["jobId"];
            
            // Check the job status in a loop
            do
            {
                $status = CheckJobStatus($jobId); // Possible statuses: "working", "failed", "aborted", "success".
                
                // Display timestamp and status (for demo purposes)
                echo "<p>" . date(DATE_RFC2822) . ": " . $status . "</p>";
                
                if ($status == "success")
                {
                    // Display link to the file with conversion results
                    echo "<div><h2>Conversion Result:</h2><a href='" . $resultFileUrl . "' target='_blank'>" . $resultFileUrl . "</a></div>";
                    break;
                }
                else if ($status == "working")
                {
                    // Pause for a few seconds
                    sleep(3);
                }
                else 
                {
                    echo $status . "<br/>";
                    break;
                }
            }
            while (true);
        }
        else
        {
            // Display service reported error
            echo "<p>Error: " . $json["message"] . "</p>"; 
        }
    }
    else
    {
        // Display request error
        echo "<p>Status code: " . $status_code . "</p>"; 
        echo "<p>" . $result . "</p>"; 
    }
}
else
{
    // Display CURL error
    echo "Error: " . curl_error($curl);
}

// Cleanup
curl_close($curl);


function CheckJobStatus($jobId)
{
    $status = null;
    
    // Create URL
    $url = "https://localhost/job/check?jobid=" . $jobId;
    
    // Create request
    $curl = curl_init();
    
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    
    // Execute request
    $result = curl_exec($curl);
    
    if (curl_errno($curl) == 0)
    {
        $status_code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
        
        if ($status_code == 200)
        {
            $json = json_decode($result, true);
        
            if ($json["error"] == false)
            {
                $status = $json["status"];
            }
            else
            {
                // Display service reported error
                echo "<p>Error: " . $json["message"] . "</p>"; 
            }
        }
        else
        {
            // Display request error
            echo "<p>Status code: " . $status_code . "</p>"; 
            echo "<p>" . $result . "</p>"; 
        }
    }
    else
    {
        // Display CURL error
        echo "Error: " . curl_error($curl);
    }
    
    // Cleanup
    curl_close($curl);
    
    return $status;
}

?>

</body>
</html>