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2025-11-23 23:26:24 +01:00
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docs/Usage/Advanced-usage.md
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@@ -173,7 +173,7 @@ $output = $qrcode->render();
$qrcode->render(null, '/path/to/qrcode.svg');
```
The [`QRDataModeInterface`](https://github.com/chillerlan/php-qrcode/blob/main/src/Data/QRDataModeInterface.php) offers the `validateString()` method (implemended for `AlphaNum`, `Byte`, `Hanzi`, `Kanji` and `Number`).
The [`QRDataModeInterface`](https://github.com/chillerlan/php-qrcode/blob/main/src/Data/QRDataModeInterface.php) offers the `validateString()` method (implemented for `AlphaNum`, `Byte`, `Hanzi`, `Kanji` and `Number`).
This method is used internally when a data mode is invoked, but it can come in handy if you need to check input data beforehand.
```php
@@ -185,33 +185,6 @@ $qrcode->addHanziSegment($data);
```
### QR Code reader
In some cases it might be necessary to increase the contrast of a QR Code image:
```php
$options->readerUseImagickIfAvailable = true;
$options->readerIncreaseContrast = true;
$options->readerGrayscale = true;
$qrcode = new QRCode($options);
$result = $qrcode->readFromFile('path/to/qrcode.png');
$result = $qrcode->readFromBlob($imagedata);
```
The `QRMatrix` object from the [`DecoderResult`](https://github.com/chillerlan/php-qrcode/blob/main/src/Decoder/DecoderResult.php) can be reused:
```php
$matrix = $result->getQRMatrix();
// ...matrix modification...
$output = (new QRCode($options))->renderMatrix($matrix);
// ...output
```
## Common output options
### Save to file
@@ -266,16 +239,3 @@ $imagick = $qrcode->render($data);
echo $imagick->getImageBlob();
```
### Add a logo space
```php
$options->addLogoSpace = true;
$options->logoSpaceWidth = 9;
$options->logoSpaceHeight = 9;
$options->logoSpaceStartX = 10;
$options->logoSpaceStartY = 10;
```