How to Generate Barcode for Barcode Generator API in PHP using PDF.co Web API

What is PDF.co Web API? It is the Web API with a set of tools for documents manipulation, data conversion, data extraction, splitting and merging of documents. Includes image recognition, built-in OCR, barcode generation and barcode decoders to decode bar codes from scans, pictures and PDF.

Every API engine contains example PHP source codes that you can find here. PDF.co Web API helps with barcode generator API in PHP. It includes built-in OCR, image recognition, and can generate and read barcodes from images, scans, and PDFs.

Fast application programming interfaces of PDF.co Web API for PHP plus the instruction and the code below will help to learn how to generate barcodes. This PHP sample code should be copied and pasted into your project. After doing this just compile your project and click Run. The use of PDF.co Web API in PHP is also explained in the documentation included along with the product.

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get-barcode.php

      
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>PDF Extractor Results</title>
</head>
<body>

<?php 

// Get submitted form data
$apiKey = $_POST["apiKey"]; // The authentication key (API Key). Get your own by registering at https://app.pdf.co
$barcodeType = $_POST["barcodeType"];
$barcodeValue = $_POST["inputValue"];

// Create URL
$url = "https://api.pdf.co/v1/barcode/generate";

// Prepare requests params
$parameters = array();
$parameters["value"] = $barcodeValue;
$parameters["type"] = $barcodeType;

// Create Json payload
$data = json_encode($parameters);

// Create request
$curl = curl_init();
curl_setopt($curl, CURLOPT_HTTPHEADER, array("x-api-key: " . $apiKey, "Content-type: application/json"));
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);

// 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)
        {
            $resultFileUrl = $json["url"];
            
            // Display generated image
            echo "<div><h2>Result:</h2><img src=" . $resultFileUrl . "></div>";
        }
        else
        {
            // Display service reported errors
            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);

?>

</body>
</html>

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