我想把从sql选择动态生成的文本放在用GD库创建的图片上。我用它来创建图像并放置一些文本,但我想把变量$users和sql选择数据放置到图像中。
$query = "SELECT id, name FROM users WHERE .... ORDER BY id DESC";
while ($line = mysql_fetch_assoc($query)) {
$users .= "<img src='https://www.example.com/" . $line['id'] . "/photo'/> " . $line['name'] . "<br />";
}
function create_image(){
$im = @imagecreate(550, 600)or die("Cannot Initialize new GD image stream");
$background_color = imagecolorallocate($im, 255, 255, 0); // yellow
$red = imagecolorallocate($im, 255, 0, 0); // red
imagestring($im, 1, 5, 10, $users);
imagestring($im, 2, 5, 50, "Text 2", $red);
imagepng($im,"image.png");
imagedestroy($im);
}
create_image();
print "<img src=image.png?".date("U").">";
但$user变量中的文字没有出现,我该怎么做?
请教
下面是一个如何在png图片上绘制文字的例子。
$img = imagecreatefrompng($image_path); //$image_path -> on which text to be drawn
@imagealphablending($img, true);
@imagesavealpha($img, true);
$textColor = imagecolorallocate($img, 100, 100, 98);
$font = '../fonts/Arial.ttf';
imagettftext($img, 18, 0, 140, 285,$textColor,$font, $name); // $name -> dynamic text to be drawn on image
$path = "path where you want to save created image";
$image = imagejpeg($img, $path);
imagedestroy($img);
完成...