<?php
$target_width=640;
$target_height=1080;
$hec_width=580;
$hec_height=840;
$bigImgPath = 'img/hec.jpg';
$qCodePath = 'img/jw8.png';
$target_image = imagecreatetruecolor($target_width, $target_height);//设置画布
$hec_image = imagecreatetruecolor($hec_width, $hec_height);//设置画布
$bg1 = imagecolorallocatealpha($hec_image , 51 , 51 , 51 , 127);//
imagealphablending($hec_image , true);//关闭混合模式,以便透明颜色能覆盖原画板
imagefill($hec_image , 0 , 0 , $bg1);//填充
imagesavealpha($hec_image , true);//设置保存PNG时保留透明通道信息
$bigImg = imagecreatefromstring(file_get_contents($bigImgPath));
$qCodeImg = imagecreatefromstring(file_get_contents($qCodePath));
$source['size']= getimagesize($bigImgPath);
$qCodePath1['size']= getimagesize($qCodePath);
// 缩放
imagecopyresampled($target_image, $bigImg, 0, 0, 0, 0, $target_width, $target_height, $source['size'][0], $source['size'][1]);
// 缩放
imagecopyresampled($hec_image, $qCodeImg, 0, 0, 0, 0, $hec_width, $hec_height, $qCodePath1['size'][0], $qCodePath1['size'][1]);
imagecopy($target_image, $hec_image, 30, 30, 0, 0, $hec_width, $hec_height);
header('content-type:image/gif'); //设置gif Image
imagepng($target_image);
?>
图1
图2
合成效果图