PHP Imagearc() Function

Imagearc( ) function is another inbuilt PHP function mainly used to draw an arc of a circle with a particular center and given coordinates. The function works using the x and y-axis, used to set coordinates for the starting point from where the picture has to be drawn. The origin coordinates (0, 0) are of the top left corner of the browsing window, and from the origin, we can set the coordinates to get the resulting arc according to our needs. The function returns Boolean values true on success and false on failure.

Syntax

bool imagearc( $image, $cx, $cy, $width, $height, $start, $end, 
$color )

Parameters

This function accepts these eight parameters.

S.No	Parameter	Description	Optional / mandatory
1	$ image	This parameter is used to define the size of the image we want to display. This parameter is used by an image resource like the imagecreatetruecolor( ) function used to return an image source.	Mandatory
2	$ cx	This parameter is used to set the desired arc's x-coordinates. Starting from the origin	Mandatory
3	$ cd	This parameter is used to set the desired arc's y-coordinates. Starting from the origin	Mandatory
4	$ width	This parameter is used to define the width of the arc that will be printed	Mandatory
5	$ height	This parameter is used to define the height of the arc that will be printed	Mandatory
6	$ start	This parameter is used to define the start angle of the arc in degrees that will be printed	Mandatory
7	$ end	This parameter is used to define the end angle of the arc in degrees that will be printed 0� is located at the three o'clock position, and the arc is drawn clockwise.	Mandatory
8	$ color	This parameter is used to define the color of the image. This parameter is used for creating a color identifies like the imagecolorallocate ( ) function	optional

The imagearc( ) function returns TRUE on successful execution of the program and FALSE on a failed attempt.

Program 1: PHP program to display the basics of imagearc( ) function

<!DOCTYPEhtml>
<html lang= " en ">
<head>
  <meta charse t= " UTF - 8 ">
  <meta http - equiv= " X - UA - Compatible " content = " IE = edge ">
  <meta name = " viewport " content = " width = device - width, initial - scale = 1 .0">
  <title>PHP </title>
</head>
<body>
<? php
// to define the size of the image
$image = imagecreatetruecolor(210, 210);
// to define thecolor of the image
$image-color-1 = imagecolorallocate( $image, 110, 55, 250 );
$image-color-2 = imagecolorallocate( $image, 35, 250, 155 );
// imagearc function to display an arc inside a circle
Imagearc( $image, 110, 110, 210, 210, 0, 360, $image-color-1 );
Imagearc( $image, 135, 55, 105, 155, 25, 155, $image-color-2 );
header ( ' Content - type : image / png ');
imagepng( $image);  
imagedestroy( $image); 
?>
</body>
</html>

Output

The above code gives the following output.

We have used the imagearc( ) function to declare the arc we want to display as an image. To display the output of the image, we have used an inbuilt PHP command header and imagepng to display on the browser.

Program 2: PHP program to display the basics of imagearc( ) function

<!DOCTYPEhtml>
<html lang= " en ">
<head>
  <meta charse t= " UTF - 8 ">
  <meta http - equiv= " X - UA - Compatible " content = " IE = edge ">
  <meta name = " viewport " content = " width = device - width, initial - scale = 1 .0">
  <title> PHP </title>
</head>
<body>
<? php
// to define the size of the image
$image = imagecreatetruecolor(250, 250);
// to define thecolor of the image
$image-color-1 = imagecolorallocate( $image, 110, 55, 250 );
$image-color-2 = imagecolorallocate( $image, 35, 250, 155 );
// imagearc function to display an arc inside a circle
Imagearc( $image, 130, 101, 201, 210, 0, 360, $image-color-1 );
Imagearc( $image, 141, 51, 142, 155, 95, 155, $image-color-2 );
// output image in the browser
header ( ' Content - type : image / png ');
imagepng( $image);  
// free memory
imagedestroy( $image); 
?>
</body>
</html>

Output

Here in this program, we have declared various variables like $image to define the size of the image that we require, $ image - color -1, and $ image - color - 2 to define the color of arc we require. We have used the imagearc( ) function to declare the arc we want to display as an image. To display the output of the image, we have used an inbuilt PHP command header and imagepng to display on the browser.

Program 3: PHP program to display the basics of imagearc( ) function

<!DOCTYPEhtml>
<html lang= "en ">
<head>
  <meta charse t= " UTF - 8 ">
  <meta http - equiv= " X - UA - Compatible " content = " IE = edge ">
  <meta name = " viewport " content = " width = device - width, initial - scale = 1 .0">
  <title> PHP </title>
</head>
<body>
<? php
// to define the size of the image
$image = imagecreatetruecolor(200, 200);
// to define thecolor of the image
$image-color-white = imagecolorallocate( $image, 255 , 255, 255 );
$image-color-red = imagecolorallocate( $image, 255, 1, 1 );
$image-color-green = imagecolorallocate( $image, 1, 255, 1 );
$image-color-blue = imagecolorallocate( $image, 1, 1 , 255 );
// imagearc function to display an arc inside a circle
// head using arc 
Imagearc( $image, 101, 101, 201, 210, 0, 360, $image-color-white );
//mouth using arc
Imagearc( $image, 101, 101, 151 , 151 , 25, 155, $image-color-red );
// eyes using arc
Imagearc( $image, 61 , 76 , 51 , 51 ,  0 , 360 , $image-color-green );
Imagearc( $image, 141 , 76 , 51 , 51 ,  0 , 360 , $image-color-blue );
// to output the image in the browser
header ( ' Content - type : image / png ');
imagepng( $image);  
// to free the stored memory
imagedestroy( $image); 
?>
</body>
</html>

Output

Here in this program, we have declared various variables like $image to define the size of the image that we require, $ image - color -white, $ image - color - red, $ image - color - green, and $ image - color - blue to define the color of arc we require. We have used the imagearc( ) function to declare the arc we want to display and created a face using the image arc () function. To display the output of the image, we have used an inbuilt PHP command header and imagepng to display on the browser.

Program 4: PHP program to display the basics of imagearc( ) function

<!DOCTYPEhtml>
<html lang= " en ">
<head>
  <meta charse t= " UTF - 8 ">
  <meta http - equiv= " X - UA - Compatible " content = " IE = edge ">
  <meta name = " viewport " content = " width = device - width, initial - scale = 1 .0">
  <title>PHP </title>
</head>
<body>
<? php
// to define the size of the image
$image = imagecreatetruecolor(200, 200);
// to declare the background color of the image
$background-color = imagecolorallocate($image , 0 , 100 , 0 );
// to fill background with the selected color
Imagefill( $image , 0 , 0 , $background-color );
// to define thecolor of the image
$image-color-white = imagecolorallocate( $image, 255 , 255 , 255 );
$image-color-red = imagecolorallocate( $image, 255, 1, 1 );
$image-color-green = imagecolorallocate( $image, 1, 255, 1 );
$image-color-blue = imagecolorallocate( $image, 1 , 1 , 255 );
// imagearc function to display an arc inside a circle
// head using arc 
Imagearc( $image, 101, 101, 201, 210, 0, 360, $image-color-white );
//mouth using arc
Imagearc( $image, 101, 101, 151 , 151 , 25, 155, $image-color-red );
// eyes using arc
Imagearc( $image, 61 , 76 , 51 , 51 ,  0 , 360 , $image-color-green );
Imagearc( $image, 141 , 76 , 51 , 51 ,  0 , 360 , $image-color-blue );
// to output the image in the browser
header ( ' Content - type : image / png ');
imagepng( $image);  
// to free the stored memory
imagedestroy( $image); 
?>
</body>
</html>

Output:

Here in this program, we have declared various variables like $image to define the size of the image that we require, we have declared $background-color to assign a background color and $ image - color -white, $ image - color - red, $ image - color - green and $ image - color - blue to define the color of arc we require. We have used the imagearc( ) function to declare the arc we want to display and created a face using the image arc () function. To display the output of the image, we have used an inbuilt PHP command header and imagepng to display on the browser.

Program5: PHP program to display the basics of imagearc( ) function

<!DOCTYPEhtml>
<html lang= " en ">
<head>
  <meta charse t= " UTF - 8 ">
  <meta http - equiv= " X - UA - Compatible " content = " IE = edge ">
  <meta name = " viewport " content = " width = device - width, initial - scale = 1 .0">
  <title> PHP </title>
</head>
<body>
<? php
// to define the size of the image
$image = imagecreatetruecolor(200, 200);
// to declare the background color of the image
$background-color = imagecolorallocate($image , 0 , 100 , 0 );
// to fill background with the selected color
Imagefill( $image , 0 , 0 , $background-color );
// to define thecolor of the image
$image-color-white = imagecolorallocate( $image, 255 , 255 , 255 );
$image-color-red = imagecolorallocate( $image, 255, 1, 1 );
$image-color-black = imagecolorallocate( $image, 1, 1 , 1 );
// imagearc function to display an arc inside a circle
Imagearc( $image, 201, 151, 201, 210, 0, 360, $image-color-white );
Imagearc( $image, 201, 151, 151 , 151 , 0, 360, $image-color-red );
Imagearc( $image, 201, 151, 51 , 51 ,  0 , 360 , $image-color-black );
// to output the image in the browser
header ( ' Content - type : image / png ');
imagepng( $image);  
// to free the stored memory
imagedestroy( $image); 
?>
</body>
</html>

Output:

Here in this program, we have declared various variables like $image to define the size of the image that we require, we have declared $background-color to assign a background color and $ image - color -white, $ image - color - red, and $ image - color - black to define the color of arc we require. We have used the imagearc( ) function to declare the arc we want to display and created a face using the image are () function. To display the output of the image, we have used an inbuilt PHP command header and imagepng to display on the browser.

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