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210 lines
7.4 KiB
210 lines
7.4 KiB
<?php
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// +----------------------------------------------------------------------
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// | 萤火商城系统 [ 致力于通过产品和服务，帮助商家高效化开拓市场 ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2017~2023 https://www.yiovo.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed 这不是一个自由软件，不允许对程序代码以任何形式任何目的的再发行
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// +----------------------------------------------------------------------
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// | Author: 萤火科技 <admin@yiovo.com>
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// +----------------------------------------------------------------------
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declare (strict_types=1);
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namespace app\common\service\qrcode;
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use Exception;
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use Grafika\Color;
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use Grafika\Grafika;
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use cores\exception\BaseException;
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use app\common\model\dealer\User as DealerUserModel;
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use app\common\model\dealer\Setting as SettingModel;
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/**
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* 分销二维码
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* Class Qrcode
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* @package app\common\service
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*/
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class Poster extends BaseQRcode
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{
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// 分销商用户信息
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private ?DealerUserModel $dealer;
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// 分销商海报设置
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private string $channel;
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// 分销商海报设置
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private $config;
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/**
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* 构造方法
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* Poster constructor.
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* @param DealerUserModel $dealer
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* @param string $channel 二维码渠道(小程序码、h5码)
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* @throws \think\db\exception\DataNotFoundException
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* @throws \think\db\exception\DbException
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* @throws \think\db\exception\ModelNotFoundException
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*/
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public function __construct(DealerUserModel $dealer, string $channel = 'H5')
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{
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parent::__construct();
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// 分销商用户信息
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$this->dealer = $dealer;
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// 二维码渠道
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$this->channel = $channel;
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// 分销商海报设置
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$this->config = SettingModel::getItem('poster', $this->getStoreId());
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}
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/**
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* 获取分销二维码
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* @return string
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* @throws BaseException
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* @throws \think\db\exception\DataNotFoundException
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* @throws \think\db\exception\DbException
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* @throws \think\db\exception\ModelNotFoundException
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* @throws Exception
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*/
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public function getImage(): string
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{
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// 如果已生成过，则直接返回url
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if (file_exists($this->getPosterPath())) {
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return $this->getPosterUrl();
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}
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// 商城ID
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$storeId = (int)$this->dealer['store_id'];
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// 1. 下载背景图
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$backdrop = $this->saveTempImage($storeId, $this->config['backdrop']['src'], 'backdrop');
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// 2. 下载用户头像
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$avatarUrl = $this->userAvatar();
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$avatar = $this->saveTempImage($storeId, $avatarUrl, 'avatar');
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// 3. 下载二维码
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$scene = 'uid:' . $this->dealer['user_id'];
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$qrcode = $this->getQrcode($storeId, $scene, null, $this->channel);
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// 4. 拼接海报图
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return $this->savePoster($backdrop, $avatar, $qrcode);
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}
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/**
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* 获取用户头像
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* @return string
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*/
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private function userAvatar(): string
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{
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$avatar = $this->dealer['user']['avatar'];
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return !empty($avatar) ? $avatar['external_url'] : $this->config['avatar']['src'];
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}
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/**
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* 海报图文件路径
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* @return string
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*/
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private function getPosterPath(): string
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{
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// 保存路径
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$tempPath = web_path() . "temp/{$this->dealer['store_id']}/";
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!is_dir($tempPath) && mkdir($tempPath, 0755, true);
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return $tempPath . $this->getPosterName();
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}
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/**
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* 海报图文件名称
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* @return string
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*/
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private function getPosterName(): string
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{
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return md5("poster_{$this->channel}_{$this->dealer['user_id']}") . '.png';
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}
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/**
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* 海报图url
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* @return string
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*/
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private function getPosterUrl(): string
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{
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return base_url() . "temp/{$this->dealer['store_id']}/" . $this->getPosterName() . '?t=' . time();
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}
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/**
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* 拼接海报图
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* @param string $backdrop 背景图路径
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* @param string $avatar 头像路径
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* @param string $qrcode 二维码路径
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* @return string
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* @throws Exception
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*/
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private function savePoster(string $backdrop, string $avatar, string $qrcode): string
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{
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// 实例化图像编辑器
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$editor = Grafika::createEditor(['Gd']);
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// 打开海报背景图
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$editor->open($backdropImage, $backdrop);
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// 生成圆形用户头像
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$this->config['avatar']['style'] === 'circle' && $this->circular($avatar, $avatar);
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// 打开用户头像
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$editor->open($avatarImage, $avatar);
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// 重设用户头像宽高
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$avatarWidth = $this->config['avatar']['width'] * 2;
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$editor->resizeExact($avatarImage, $avatarWidth, $avatarWidth);
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// 用户头像添加到背景图
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$avatarX = $this->config['avatar']['left'] * 2;
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$avatarY = $this->config['avatar']['top'] * 2;
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$editor->blend($backdropImage, $avatarImage, 'normal', 1.0, 'top-left', $avatarX, $avatarY);
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// 生成圆形二维码
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// $this->config['qrcode']['style'] === 'circle' && $this->circular($qrcode, $qrcode);
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// 打开二维码
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$editor->open($qrcodeImage, $qrcode);
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// 重设二维码宽高
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$qrcodeWidth = $this->config['qrcode']['width'] * 2;
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$editor->resizeExact($qrcodeImage, $qrcodeWidth, $qrcodeWidth);
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// 二维码添加到背景图
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$qrcodeX = $this->config['qrcode']['left'] * 2;
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$qrcodeY = $this->config['qrcode']['top'] * 2;
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$editor->blend($backdropImage, $qrcodeImage, 'normal', 1.0, 'top-left', $qrcodeX, $qrcodeY);
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// 写入用户昵称
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$fontSize = $this->config['nickName']['fontSize'] * 2 * 0.76;
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$fontX = $this->config['nickName']['left'] * 2;
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$fontY = $this->config['nickName']['top'] * 2;
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$Color = new Color($this->config['nickName']['color']);
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$fontPath = Grafika::fontsDir() . '/st-heiti-light.ttc';
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$editor->text($backdropImage, $this->dealer['user']['nick_name'], $fontSize, $fontX, $fontY, $Color, $fontPath);
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// 保存图片
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$editor->save($backdropImage, $this->getPosterPath());
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return $this->getPosterUrl();
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}
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/**
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* 生成圆形图片
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* @param string $imgpath 图片地址
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* @param string $saveName 保存文件名，默认空。
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*/
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private function circular(string $imgpath, string $saveName = '')
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{
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$srcImg = imagecreatefromstring(file_get_contents($imgpath));
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$w = imagesx($srcImg);
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$h = imagesy($srcImg);
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$w = $h = min($w, $h);
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$newImg = imagecreatetruecolor($w, $h);
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// 这一句一定要有
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imagesavealpha($newImg, true);
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// 拾取一个完全透明的颜色,最后一个参数127为全透明
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$bg = imagecolorallocatealpha($newImg, 255, 255, 255, 127);
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imagefill($newImg, 0, 0, $bg);
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$r = $w / 2; //圆半径
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for ($x = 0; $x < $w; $x++) {
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for ($y = 0; $y < $h; $y++) {
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$rgbColor = imagecolorat($srcImg, $x, $y);
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if (((($x - $r) * ($x - $r) + ($y - $r) * ($y - $r)) < ($r * $r))) {
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imagesetpixel($newImg, $x, $y, $rgbColor);
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}
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}
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}
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// 输出图片到文件
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imagepng($newImg, $saveName);
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// 释放空间
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imagedestroy($srcImg);
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imagedestroy($newImg);
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}
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} |