### Get QR Code Data URI

Source: https://github.com/dfridrich/qrplatba/blob/main/README.md

Retrieves the QR code as a data URI string, which can be directly used in the `src` attribute of an `<img>` tag.

```php
// data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAUAAAAFAAQMAAAD3XjfpAAAA...
echo $qrPlatba->getDataUri();
```

--------------------------------

### Create QR Payment with Basic Details

Source: https://github.com/dfridrich/qrplatba/blob/main/README.md

A simplified method to create a QR payment by providing only the account number and amount. Outputs an HTML img tag with the QR code.

```php
echo QRPlatba::create('12-3456789012/0100', 987.60)
    ->setMessage('QR platba je parádní!')
    ->getQRCodeImage();
```

--------------------------------

### Create QR Payment with IBAN

Source: https://github.com/dfridrich/qrplatba/blob/main/README.md

Use this method to create a QR payment using an IBAN account number. Outputs an HTML img tag with the QR code.

```php
echo QRPlatba::create('CZ6508000000192000145399', 987.60)
    ->setMessage('QR platba je parádní!')
    ->getQRCodeImage();
```

--------------------------------

### Generate QR Payment with Details

Source: https://github.com/dfridrich/qrplatba/blob/main/README.md

Use this snippet to set account details, symbols, amount, currency, and due date for a QR payment. The output is an HTML img tag with the QR code data URI.

```php
<?php

require __DIR__ . '/vendor/autoload.php';

use Defr\QRPlatba\QRPlatba;

$qrPlatba = new QRPlatba();

$qrPlatba->setAccount('12-3456789012/0100') // nastavení č. účtu
    ->setIBAN('CZ3112000000198742637541') // nastavení č. účtu
    ->setVariableSymbol('2016001234')
    ->setMessage('Toto je první QR platba.')
    ->setConstantSymbol('0308')
    ->setSpecificSymbol('1234')
    ->setAmount('1234.56')
    ->setCurrency('CZK') // Výchozí je CZK, lze zadat jakýkoli ISO kód měny
    ->setDueDate(new 
DateTime());

echo $qrPlatba->getQRCodeImage(); // Zobrazí <img> tag s kódem, viz níže  
```

--------------------------------

### Generate QR Invoice Only

Source: https://github.com/dfridrich/qrplatba/blob/main/README.md

Configure the library to generate only a QR Invoice without payment details.

```php
$qrPlatba->setIsOnlyInvoice(true)->setLabel('QR Faktura');
```

--------------------------------

### Save QR Code Image to File

Source: https://github.com/dfridrich/qrplatba/blob/main/README.md

Saves the generated QR code to a file. You can specify the filename, format (PNG or SVG), and size.

```php
// Uloží png o velikosti 100x100 px
$qrPlatba->saveQRCodeImage("qrcode.png", "png", 100);

// Uloží svg o velikosti 100x100 px
$qrPlatba->saveQRCodeImage("qrcode.svg", "svg", 100);
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.