我正在使用以下代码生成基于文本的图像。一切正常,除了字母“a”和“A”分别显示为å和Å。为什么?
一切看起来都很好,但一个 / A。
header('Content-Type: image/png');
// Create the image
$im = imagecreatetruecolor(400, 30);
// 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, 399, 29, $white);
// The text to draw
//$text = @$_GET['text'];
$text = "qwertyuiopASDFGHJKLasdfghjklzxcvbnm";
// Replace path by your own font path
$font = 'arial.ttf';
// Add some shadow to the text
//imagettftext($im, 12, 0, 11, 21, $grey, $font, $text);
// Add the text
imagettftext($im, 12, 0, 10, 20, $black, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
imagepng($im);
imagedestroy($im);
谢谢!=)
编辑:img 的快照:
编辑2: 这有什么结论吗?http://en.wikipedia.org/wiki/%C3%85#On_computers