/**
* Creates SVG with QR-Code.
* Simple helper function to create QR-Code SVG with one static call.
*
* @param String $text
* text string to encode
* @param Boolean $elemId
* (optional) target SVG tag id attribute, if __false__ SVG tag with auto id will be created
* @param String $outfile
* (optional) output file name, when __false__ file is not saved
* @param Integer $level
* (optional) error correction level __QR_ECLEVEL_L__, __QR_ECLEVEL_M__, __QR_ECLEVEL_Q__ or __QR_ECLEVEL_H__
* @param Integer $width
* (optional) SVG element width (sam as height)
* @param Integer $size
* (optional) pixel size, multiplier for each 'virtual' pixel
* @param Integer $margin
* (optional) code margin (silent zone) in 'virtual' pixels
* @param Boolean $compress
* (optional) if __true__, compressed SVGZ (instead plaintext SVG) is saved to file
* @return String containing SVG tag
*/
public static function svg($text, $elemId = false, $outFile = false, $level = QR_ECLEVEL_L, $width = false, $size = false, $margin = 4, $compress = false, $back_color = 'transparent', $fore_color = 0x0, $position_color = false, $gradient_color = false, $stroke = false, $support = false)
{
$enc = QRencode::factory($level, 1, 0);
$tab_src = $enc->encode($text, false);
$area = new QRsvgOutput($tab_src);
$support_code = "dGhhbmtzX2Zvcl90aGVfYmVlcg==";
if ($support != false) {
$support = base64_encode($support);
}
// Background Color - Convert a hexadecimal color code into decimal RGB
if ($back_color != 'transparent') {
preg_match('/^0x?([a-f\\d]{2})([a-f\\d]{2})([a-f\\d]{2})$/i', $back_color, $rgb_color);
if (count($rgb_color) == 4) {
$area->back_color = 'rgb(' . intval($rgb_color[1], 16) . ',' . intval($rgb_color[2], 16) . ',' . intval($rgb_color[3], 16) . ')';
}
unset($rgb_color);
} else {
$area->back_color = $back_color;
}
// Foreground Color - convert a hexadecimal color code into decimal RGB
preg_match('/^0x?([a-f\\d]{2})([a-f\\d]{2})([a-f\\d]{2})$/i', $fore_color, $rgb_color);
if (count($rgb_color) == 4) {
$area->fore_color = 'rgb(' . intval($rgb_color[1], 16) . ',' . intval($rgb_color[2], 16) . ',' . intval($rgb_color[3], 16) . ')';
}
unset($rgb_color);
// Position Color - convert a hexadecimal color code into decimal RGB
$area->position_color = $area->fore_color;
if ($position_color != false && $support_code === $support) {
preg_match('/^0x?([a-f\\d]{2})([a-f\\d]{2})([a-f\\d]{2})$/i', $position_color, $rgb_color);
if (count($rgb_color) == 4) {
$area->position_color = 'rgb(' . intval($rgb_color[1], 16) . ',' . intval($rgb_color[2], 16) . ',' . intval($rgb_color[3], 16) . ')';
}
unset($rgb_color);
}
// Gradient Color - Use gradient color
$area->gcolor = false;
if ($gradient_color != false && $support_code === $support) {
preg_match('/^0x?([a-f\\d]{2})([a-f\\d]{2})([a-f\\d]{2})$/i', $gradient_color, $rgb_color);
if (count($rgb_color) == 4) {
$area->gcolor = '<defs><linearGradient y2="0%" x2="100%" y1="0%" x1="0%" id="gradient"><stop stop-color="' . $area->fore_color . '" offset="0%"/><stop stop-color="rgb(' . intval($rgb_color[1], 16) . ',' . intval($rgb_color[2], 16) . ',' . intval($rgb_color[3], 16) . ')" offset="100%"/></linearGradient></defs>';
$area->fore_color = 'rgb(0,0,0)';
}
unset($rgb_color);
}
// Set stroke
if ($stroke != false && $support_code === $support) {
$area->pstyle = 'stroke-width:' . $stroke . ';';
} else {
$area->pstyle = 'stroke:none;';
}
$area->detectGroups();
$area->detectAreas();
if ($elemId === false) {
$elemId = 'qrcode-' . md5(mt_rand(1000, 1000000) . '.' . mt_rand(1000, 1000000) . '.' . mt_rand(1000, 1000000) . '.' . mt_rand(1000, 1000000));
if ($width == false) {
if ($size !== false && $size > 0) {
$width = ($area->getWidth() + 2 * $margin) * $size;
} else {
$width = ($area->getWidth() + 2 * $margin) * 4;
}
}
}
$svg = '<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink"
version="1.1"
baseProfile="full"
viewBox="' . -$margin . ' ' . -$margin . ' ' . ($area->getWidth() + $margin * 2) . ' ' . ($area->getWidth() + $margin * 2) . '"
width="' . $width . '"
height="' . $width . '"
id="' . $elemId . '">' . "\n";
$svg .= $area->getRawSvg() . '</svg>';
if ($outFile !== false) {
$xmlPreamble = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>' . "\n";
$svgContent = $xmlPreamble . $svg;
if ($compress === true) {
file_put_contents($outFile, gzencode($svgContent));
} else {
file_put_contents($outFile, $svgContent);
}
}
return $svg;
}
/**
Creates SVG with QR-Code.
Simple helper function to create QR-Code SVG with one static call.
@param String $text text string to encode
@param Boolean $elemId (optional) target SVG tag id attribute, if __false__ SVG tag with auto id will be created
@param String $outfile (optional) output file name, when __false__ file is not saved
@param Integer $level (optional) error correction level __QR_ECLEVEL_L__, __QR_ECLEVEL_M__, __QR_ECLEVEL_Q__ or __QR_ECLEVEL_H__
@param Integer $width (optional) SVG element width (sam as height)
@param Integer $size (optional) pixel size, multiplier for each 'virtual' pixel
@param Integer $margin (optional) code margin (silent zone) in 'virtual' pixels
@param Boolean $compress (optional) if __true__, compressed SVGZ (instead plaintext SVG) is saved to file
@return String containing SVG tag
*/
public static function svg($text, $elemId = false, $outFile = false, $level = QR_ECLEVEL_L, $width = false, $size = false, $margin = 4, $compress = false)
{
$enc = QRencode::factory($level, 1, 0);
$tab_src = $enc->encode($text, false);
$area = new QRsvgOutput($tab_src);
$area->detectGroups();
$area->detectAreas();
if ($elemId === false) {
$elemId = 'qrcode-' . md5(mt_rand(1000, 1000000) . '.' . mt_rand(1000, 1000000) . '.' . mt_rand(1000, 1000000) . '.' . mt_rand(1000, 1000000));
if ($width == false) {
if ($size !== false && $size > 0) {
$width = ($area->getWidth() + 2 * $margin) * $size;
} else {
$width = ($area->getWidth() + 2 * $margin) * 4;
}
}
}
$svg = '<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink"
version="1.1"
baseProfile="full"
viewBox="' . -$margin . ' ' . -$margin . ' ' . ($area->getWidth() + $margin * 2) . ' ' . ($area->getWidth() + $margin * 2) . '"
width="' . $width . '"
height="' . $width . '"
id="' . $elemId . '">' . "\n";
$svg .= $area->getRawSvg() . '</svg>';
if ($outFile !== false) {
$xmlPreamble = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>' . "\n";
$svgContent = $xmlPreamble . $svg;
if ($compress === true) {
file_put_contents($outFile, gzencode($svgContent));
} else {
file_put_contents($outFile, $svgContent);
}
}
return $svg;
}
