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plotBinance.php
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<?php
require __DIR__ . '/vendor/autoload.php';
$parameters = array(
'host' => 'redis'
);
$client = new Predis\Client($parameters);
$indexarr = array(
"BTC"=>"Bitcoin",
"ETH"=>"Ethereum",
"LTC"=>"Litecoin",
"XMR"=>"Monero",
"ZEC"=>"ZCash",
"BCH"=>"Bitcoin Cash",
"XRP"=>"Ripple"
);
if ( isset( $_GET['coin'] ) && $_GET['coin'] ) {
$coin = $_GET['coin'];
$coin = strtoupper($coin);
// if input not listed change to BTC
if (!array_key_exists($coin, $indexarr)){
$coin ='BTC';
}
}else{
$coin ='BTC';
}
// get variable from docker setting
$cache_secs = getenv("CACHE_SECS");
$value = $client->get('Binance'.$coin);
if (!empty($value)) {
// Get Cache
header('Content-type:image/png');
echo base64_decode($value);
}
else
{
$width = 700;
$height = 464;
$nextRight = 30;
$nextButtom = 60;
$im=imagecreatetruecolor(700,464);
$black=imagecolorallocate($im,38,38,38);
$white=imagecolorallocate($im,255,255,255);
$blue =imagecolorallocate($im,101,181,177);
$blueblue =imagecolorallocate($im,0,130,254);
// $red=imagecolorallocate($im,255,0,0);
$green=imagecolorallocate($im,255,0,0);
$yellow = imagecolorallocate($im, 251, 250, 124);
// $green = imagecolorallocate($im, 61, 255, 61);
$red = imagecolorallocate($im, 61, 255, 61);
$grey = imagecolorallocate($im, 140, 137, 126);
$graphHeight = 275;
$graphHeight = 180;
$nextButtom = 340-$graphHeight;
$lowline = $height - $nextButtom;
imagefill($im,0,0,$black);
$url = 'https://api.binance.com/api/v3/klines?symbol='.$coin.'USDT&interval=5m&limit=200';
$jsond = file_get_contents($url);
$json_a = json_decode($jsond, true);
$volumeArr = array();
foreach ($json_a as $key => $value) {
$minmax[] =$value[4];
$volumeArr[] = $value[5];
}
// ========== Upper graph ==================
$high = max($minmax);
$low = min($minmax);
$mid = ($high - $low)/2;
$height_ratio = 180/($high - $low);
$width_ratio = 400/200;
foreach($minmax as $key=>$value){
$adjusted = $lowline - (($value - $low))*$height_ratio ;
$point[]=array(($key)*$width_ratio,$adjusted);
}
$highline = $height - $nextButtom -$graphHeight;
$lowline = $height - $nextButtom;
$deepline = $height - 60;
$graph_buttom = 270;
imageline($im,$graph_buttom,$highline-5,670,$highline-5,$grey);
imageline($im,$graph_buttom,$lowline+5,670,$lowline+5,$grey);
for($i=0,$j=count($point);$i<$j-1;$i++){
imageline($im,$point[$i][0]+$graph_buttom,$point[$i][1],$point[$i+1][0]+$graph_buttom,$point[$i+1][1],$blue);
$values = array(
$point[$i][0] +$graph_buttom, $point[$i][1], // Point 1 (x, y)
$point[$i+1][0]+$graph_buttom, $point[$i+1][1], // Point 2 (x, y)
$point[$i+1][0]+$graph_buttom, $lowline, // Point 3 (x, y)
$point[$i][0] +$graph_buttom, $lowline // Point 4 (x, y)
);
// Make blue cover under chart line
imagefilledpolygon($im, $values, 4, $blueblue);
}
// ============= lower graph =========================
$maxVol = max($volumeArr);
if ($maxVol == 0) {
$maxVol = 1;
}
$height_ratio = (265-$graphHeight)/$maxVol;
$tmpValue = $volumeArr[0];
foreach ($volumeArr as $key => $value) {
imageline($im,$key*$width_ratio+270 ,$deepline ,$key*$width_ratio+270,$deepline - $value*$height_ratio ,$yellow);
imageline($im,$key*$width_ratio+270+1 ,$deepline ,$key*$width_ratio+270+1,$deepline - $value*$height_ratio ,$yellow);
}
$url = 'https://api.binance.com/api/v3/ticker/24hr?symbol='.$coin.'USDT';
$jsond = file_get_contents($url);
$json_a = json_decode($jsond, true);
$rate = $json_a["priceChangePercent"];
$close = $json_a['lastPrice'];
$high = $json_a['highPrice'];
$low = $json_a['lowPrice'];
$Volume = $json_a['volume'];
$change = $json_a['priceChange'];
$font = './font/Roboto-Bold.ttf';
$boldfont = './font/Roboto-Bold.ttf';
$fontsize = 36;
$text = $coin.'/USDT';
$textX = 30;
$textY = 70 ;
imagettftext( $im, $fontsize, 0, $textX, $textY, $white, $font, $text );
$font = './font/Roboto-Regular.ttf';
$text = '|';
$fontsize = 25;
$textX = 140 ;
$textY = 65;
// imagettftext( $im, $fontsize, 0, $textX, $textY, $white, $font, $text );
$close = number_format((float)$close, 2, '.', '');
$change = number_format((float)$change, 2, '.', '');
$Mfont = './font/Roboto-Medium.ttf';
$fontsize = 48;
$textX = 30;
$textY = 180 ;
$price_font_size = 20;
$price_text = '$'.$close.' '.$change;
$bbox = imagettfbbox($price_font_size, 0, $font, $price_text);
$text_width = $bbox[2] - $bbox[0];
while ($text_width > 235) {
$price_font_size--;
$bbox = imagettfbbox($price_font_size, 0, $font, $price_text);
$text_width = $bbox[2] - $bbox[0];
}
if ($rate == 0) {
# code...
$text = $rate.'%';
imagettftext( $im, $fontsize, 0, $textX, $textY, $white, $Mfont, $text );
$textX = 30;
$textY = 220;
imagettftext( $im, $price_font_size, 0, $textX, $textY, $white, $font, $price_text );
}
elseif ($rate <0) {
# code...
$rate = abs( $rate );
#$rate = floor($rate * 100) / 100;
$rate = number_format((float)$rate, 2, '.', '');
$text = $rate.'%';
imagettftext( $im, $fontsize, 0, $textX, $textY, $green, $Mfont, $text );
$textX = 30;
$textY = 220;
imagettftext( $im, $price_font_size, 0, $textX, $textY, $green, $font, $price_text );
}
else{
$rate = number_format((float)$rate, 2, '.', '');
$text = $rate .'%';
imagettftext( $im, $fontsize, 0, $textX, $textY, $red, $Mfont, $text );
$textX = 30;
$textY = 220;
imagettftext( $im, $price_font_size, 0, $textX, $textY, $red, $font, $price_text );
}
$text = 'Volume';
$fontsize = 20;
$textX = 30;
$textY = 280 ;
imagettftext( $im, $fontsize, 0, $textX, $textY, $grey, $font, $text );
$text = number_format($Volume, 3, '.' ,',');
$fontsize = 20;
$textX = 30;
$textY = 315;
imagettftext( $im, $fontsize, 0, $textX, $textY, $white, $font, $text );
$text = '1 Day Range';
$fontsize = 20;
$textX = 30;
$textY = 365;
imagettftext( $im, $fontsize, 0, $textX, $textY, $grey, $font, $text );
// $low = floor($low * 100) / 100;
// $high = floor($high * 100) / 100;
$low = number_format((float)$low, 2, '.', '');
$high = number_format((float)$high, 2, '.', '');
$text = $low.' - '.$high;
$fontsize = 18;
$textX = 30;
$textY = 400;
// Calculate the width of the text
$bbox = imagettfbbox($fontsize, 0, $font, $text);
$text_width = $bbox[2] - $bbox[0];
while ($text_width > 235) {
$fontsize--;
$bbox = imagettfbbox($fontsize, 0, $font, $text);
$text_width = $bbox[2] - $bbox[0];
}
imagettftext($im, $fontsize, 0, $textX, $textY, $white, $font, $text);
$coords = imagettfbbox( 18, 0, $boldfont, $high );
imagettftext( $im, 18, 0, 665-$coords[4], $highline-7, $white , $boldfont, $high);
$coords = imagettfbbox( 18, 0, $boldfont, $low );
imagettftext( $im, 18, 0, 665-$coords[4], $lowline-2, $white, $boldfont, $low);
date_default_timezone_set("Asia/Taipei");
$fontsize = 16;
$text = date('A h:i');
#$textBox = imagettfbbox_t($fontsize, 0, $font, $text);
$textX = 580;
$textY = 65;
imagettftext( $im, $fontsize, 0, $textX, $textY, $grey, $font, $text );
#$base64 = base64_encode(imagejpeg($im));
ob_start ();
imagepng ($im);
$base64 = ob_get_contents ();
ob_end_clean ();
$base64 = base64_encode($base64);
$client->set("Binance".$coin, $base64);
$client->expire("Binance".$coin, $cache_secs);
header('Content-type:image/png');
// header("Cache-Control: private, max-age=3600");
imagepng($im);
imagedestroy($im);
}
?>