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imagecreate

(PHP 3, PHP 4 , PHP 5)

imagecreate -- Create a new palette based image

Description

resource imagecreate ( int x_size, int y_size)

imagecreate() returns an image identifier representing a blank image of size x_size by y_size.

We recommend the use of imagecreatetruecolor().

Example 1. Creating a new GD image stream and outputting an image.

<?php
header("Content-type: image/png");
$im = @imagecreate(100, 50)
    or die("Cannot Initialize new GD image stream");
$background_color = imagecolorallocate($im, 255, 255, 255);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5,  "A Simple Text String", $text_color);
imagepng($im);
imagedestroy($im);
?>

See also imagedestroy() and imagecreatetruecolor().

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imagecopyresizedUpimagecreatefromgd2
nbsp;   = 165;
$blue_x   = 187;
$blue_y   = 125;
$radius   = 150;

// allocate colors with alpha values
$yellow = imagecolorallocatealpha($image, 255, 255, 0, 75);
$red    = imagecolorallocatealpha($image, 255, 0, 0, 75);
$blue   = imagecolorallocatealpha($image, 0, 0, 255, 75);

// drawing 3 overlapped circle
imagefilledellipse($image, $yellow_x, $yellow_y, $radius, $radius, $yellow);
imagefilledellipse($image, $red_x, $red_y, $radius, $radius, $red);   
imagefilledellipse($image, $blue_x, $blue_y, $radius, $radius, $blue);

// don't forget to output a correct header!
header('Content-type: image/png');

// and finally, output the result
imagepng($image);
imagedestroy($image);
?>