php利用imagecreatetruecolor動態生成高清圖片代碼

2024-09-04 11:44:34

字體：大中小

來源：轉載

供稿：網友

實例一,用我們用imagecreatetruecolor,代碼如下:

header ('Content-type: image/png');

$im = @imagecreatetruecolor(120, 20)

or die('Cannot Initialize new GD image stream');

$text_color = imagecolorallocate($im, 233, 14, 91);

imagestring($im, 1, 5, 5, 'A Simple Text String', $text_color);

imagepng($im);

imagedestroy($im);

我把這個一起 - 結合較好的例子,然后動態生成的文本,但是,與此成立,我能得到透明背景以及工作.

實例二,imagecreatetruecolor,代碼如下:

header('Content-type: image/png');

// Create the image

$im = imagecreatetruecolor(175, 15);

imagesavealpha($im, true);

// Create some colors

$white = imagecolorallocate($im, 255, 255, 255);

$grey = imagecolorallocate($im, 128, 128, 128);

$black = imagecolorallocate($im, 0, 0, 0);

imagefilledrectangle($im, 0, 0, 150, 25, $black);

$trans_colour = imagecolorallocatealpha($im, 0, 0, 0, 127);

imagefill($im, 0, 0, $trans_colour);

// The text to draw

$text = $_GET['text'];

// Replace path by your own font path

$font = 'catriel regular.ttf';

// Add some shadow to the text

imagettftext($im, 9, 0, 13, 16, $black, $font, $text);

// Add the text

imagettftext($im, 9, 0, 12, 15, $white, $font, $text);

//開源代碼Vevb.com

// Using imagepng() results in clearer text compared with imagejpeg()

imagepng($im);

imagedestroy($im);

實例三:創建透明圖片

如果你想創建一個PNG圖像*透明*,其中的背景是完全透明的,所有行動發生在借鑒,除此之外,然后執行下列操作,代碼如下:

$png = imagecreatetruecolor(800, 600);

imagesavealpha($png, true);

$trans_colour = imagecolorallocatealpha($png, 0, 0, 0, 127);

imagefill($png, 0, 0, $trans_colour);

//開源代碼Vevb.com

$red = imagecolorallocate($png, 255, 0, 0);

imagefilledellipse($png, 400, 300, 400, 300, $red);

header("Content-type: image/png");

imagepng($png);