Use php to output different heart-shaped patterns, php heart-shaped pattern_PHP tutorial

Use php to output different heart-shaped patterns, php heart-shaped pattern

First of all, I will share with you the code for php to output heart-shaped curve, the code is as follows

<&#63;php
for($t=0;$t<360;$t++)
{
 $y=2*cos($t)-cos(2*$t); //笛卡尔心形曲线函数
 $x=2*sin($t)-sin(2*$t);
 $x+=3;
 $y+=3;
 $x*=70;
 $y*=70;
 $x=round($x);
 $y=round($y);
 $str[]=$x;
 $y=$y+2*(180-$y);//图像上下翻转
 $x=$y;
 $str[]=$x;
}
 $im=imagecreate(400,400);//创建画布400*400
 $black=imagecolorallocate($im,0,0,0);
 $red=imagecolorallocate($im,255,0,0);//设置颜色
 imagepolygon($im,$str,360,$red);
 imagestring($im,5,190,190,"love",$red);//输出字符串
 header('Content-type:image/gif');//通知浏览器输出的是gif图片
 imagegif($im);//输出图片
 imagedestroy($im);//销毁
&#63;>

The effect is as follows:

Use PHP to output the Cartesian heart pattern, the code is as follows

Copy code The code is as follows: $width = 600; $height = 650; header("Content-type: image/gif"); $img = imagecreate($width ,$height);//Create a picture $bg color = imagecolorallocate($img,0,0,0); $red = imagecolorallocate($img,255,0,0); for($i=0;$ i

$width = 600;$height = 650;header("Content-type: image/gif");$img = imagecreate($width,$height);//Create an image$bg_color = imagecolorallocate($ img,0,0,0);$red = imagecolorallocate($img,255,0,0);for($i=0;$i

The above is the entire content of this article, I hope it will be helpful to everyone’s study.

http://www.bkjia.com/PHPjc/1122890.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/1122890.htmlTechArticleUse php to output different heart-shaped patterns. php heart-shaped pattern. First, I will share with you the code for php to output heart-shaped curves. , the code is as follows phpfor($t=0;$t360;$t ){ $y=2*cos($t)-cos(2*$t); //Descartes...