我正在我的网站上创建一个新功能,允许人们向朋友发送明信片。在这一部分,他们可以选择他们想要发送的图像(他们已经将图像上传到他们的个人资料 - >我的图片部分)
我正在使用php函数创建右侧文本,但如何使用文本将另一个图像添加到此图像?
我使用imagettftext
创建文字,imagecreatefromjpeg
打开主图片(见下文)和imagedestroy
完成后
感谢
我正在使用这张明信片:
答案 0 :(得分:41)
首先,您必须裁剪图像以适合您的明信片。 根据您的图像,您需要做的是:
<?php
$sourceImage = './postcard-template.jpg';
$uploadedImage = '/path/to/image/hong-kong2.jpg'; // let's get hong kong as example
$mime = '';
$font = '/path/to/font/arial.ttf';
function CroppedThumbnail($source, $width, $height, &$mime) {
$data = getimagesize($source);
$sourceWidth = $data[0];
$sourceHeight = $data[1];
$mime = $data['mime'];
$image = imagecreatefromjpeg($source);
$sourceRatio = $sourceWidth/$sourceHeight;
if (($width/$height) > $sourceRatio) {
$newHeight = $width/$sourceRatio;
$newWidth = $width;
}
else {
$newWidth = $height*$sourceRatio;
$newHeight = $height;
}
$croppedImage = imagecreatetruecolor(round($newWidth), round($newHeight));
imagecopyresampled($croppedImage, $image, 0, 0, 0, 0, $newWidth, $newHeight, $sourceWidth, $sourceHeight);
$thumb = imagecreatetruecolor($width, $height);
imagecopyresampled($thumb, $croppedImage, 0, 0, (($newWidth/2)-($width/2)), (($newHeight/2)-($height/2)), $width, $height, $width, $height);
imagedestroy($croppedImage);
imagedestroy($image);
return $thumb;
}
// Create the cropped image first
$newThumb = CroppedThumbnail($uploadedImage,240,315, $mime);
switch($mime) {
case 'image/gif':
$image = imagecreatefromgif($sourceImage);
break;
case 'image/jpeg':
$image = imagecreatefromjpeg($sourceImage);
break;
case 'image/png':
$image = imagecreatefrompng($sourceImage);
break;
default:
// error or stop script
break;
}
$message = "this is some text\nsome other text\ntext text";
imagettftext($image, 21, 0, 320, 255, imagecolorallocate($image, 0, 0, 0), $font, $message);
imagecopy($image, $newThumb, 40, 40, 0, 0, 240, 315);
header('Content-Type: image/jpeg');
imagejpeg($image);
imagedestroy($image);
例如我使用此图像(需要裁剪):
然后输出:
答案 1 :(得分:0)
使用imagecopymerge将照片复制到明信片上
bool imagecopymerge ( resource $dst_im , resource $src_im , int $dst_x , int $dst_y , int $src_x , int $src_y , int $src_w , int $src_h , int $pct )