thinkphp 利用GD库在图片上写文字

<?php
/**
 * created by phpstorm.
 * user: administrator
 */
namespace home\event;

use \think\image;
use \think\upload;
class imgevent
{

    private $think_image = null;
    private $think_upload = null;

    public function __construct()
    {
        $this->think_image =  new image();
        $this->think_upload =  new upload();
    }

    /*
     * 保存base64文件
     * $img    string    base64类型的文件
     * $type   string    保存的文件类型
     *      app_user_head_img   用户头像
     *
     *
     */
    public function saveimg_base64($img = null , $type = null)
    {
        //获取保存图片配置
        $imgconfig_savepath = c("img_save.save_path");
        $imgconfig_size     = c("img_save.size");
        $saveflag = false;
//        dump($imgconfig_savepath[$type]);
//        dump($imgconfig_size);

        if (preg_match('/^(data:\s*image\/(\w+);base64,)/', $img, $result) && $imgconfig_savepath[$type])
        {

            $img_ext                = $result[2]; //图片后缀
            $img_header             = $result[1];//图片头信息
            $new_file_name          = date('ymd').'/'.uniqid().'.'.$img_ext;
            $origin_img_path        = '';//原图的保存路径
            $origin_img_save_flag   = true;//
            foreach($imgconfig_savepath[$type] as $k => $v)
            {

                if(!is_dir($v.date('ymd')))
                {
                    mkdir($v.date('ymd'),0777,true);
                }

                if ($k == 'origin')
                {
                    //先保存一份原图,然后其他尺寸的保存直接调用原图路径origin_img_path.
                    $origin_res = file_put_contents($v.$new_file_name, base64_decode(str_replace($img_header, '', $img)));
                    if (!$origin_res)
                    {
                        $origin_img_save_flag = false;
                        break;
                    }
                    else
                    {
                        $saveflag = $new_file_name;
                        $origin_img_path = $v.$new_file_name;
                        $this->think_image->open($origin_img_path);
                    }
                }
                else
                {
                    if ($origin_img_save_flag)
                    {
                        $width = $imgconfig_size[$type][$k]['w'];
                        $height = $imgconfig_size[$type][$k]['h'];
                        $this->think_image->thumb($width, $height,3)->save($v.$new_file_name);
                    }

                }
            }

        }
        return $saveflag;
    }


    /*
     *  保存file类型文件
     *
     */
    public function saveimg_file($img = null , $type = null)
    {

        //获取保存图片配置
        $imgconfig_savepath = c("img_save.save_path");
        $imgconfig_size     = c("img_save.size");
        $saveflag = false;

        if ($img && $imgconfig_savepath[$type])
        {

            $origin_img_save_flag   = true;
            foreach($imgconfig_savepath[$type] as $k => $v)
            {

                if(!is_dir($v.date('ymd')))
                {
                    mkdir($v.date('ymd'),0777,true);
                }

                if ($k == 'origin')
                {
                    $this->think_upload->rootpath = $v;
                    $this->think_upload->subname = date('ymd');
                    $this->think_upload->savename = array('uniqid','');
                    $saveres = $this->think_upload->uploadone($img);
                    if (!$saveres)
                    {
                        $origin_img_save_flag = false;
                    }
                    else
                    {
                        $saveflag = true;
                        $origin_img_path = $v.$saveres['savepath'].$saveres['savename'];
                        $this->think_image->open($origin_img_path);
                        $filename = $saveres['savepath'].$saveres['savename'];
                    }
                }
                else
                {
                    if ($origin_img_save_flag)
                    {
                        $width = $imgconfig_size[$type][$k]['w'];
                        $height = $imgconfig_size[$type][$k]['h'];
                        $compress_img_path=$v.$filename;
                        $saveflag = $this->think_image->thumb($width, $height,3)->save($v.$filename);

                        if (!$saveflag)
                        {
                            $saveflag = false;
                            $origin_img_save_flag = false;
                        }

                    }

                }


            }

            if($saveflag)
            {
                #$saveflag = $filename;
                $saveflag = array('origin'=>get_current_host().'/'.$origin_img_path,'compress'=>get_current_host().'/'.$compress_img_path);
            }

        }
        return $saveflag;
    }

    public function save_file($img = null , $type = null)
    {

        //获取保存图片配置
        $imgconfig_savepath = c("img_save.save_path");
        $saveflag = false;

        if ($img && $imgconfig_savepath[$type]) {


                if (!is_dir($imgconfig_savepath[$type] . date('ymd'))) {
                    mkdir($imgconfig_savepath[$type] . date('ymd'), 0777, true);
                }
                $this->think_upload->rootpath = $imgconfig_savepath[$type];
                $this->think_upload->subname = date('ymd');
                $this->think_upload->savename = array('uniqid', '');
                $saveres = $this->think_upload->uploadone($img);
                if ($saveres) {
                    $saveflag = true;
                    $origin_img_path = $imgconfig_savepath[$type] . $saveres['savepath'] . $saveres['savename'];

                    //$filename = $saveres['savepath'] . $saveres['savename'];
                }
            }


            if($saveflag)
            {
                $saveflag = $origin_img_path;
                return get_current_host().'/'.$saveflag;
            }else
            {
                return $saveflag;
            }


    }




    /*
     *  保存file类型文件,多文件
     *
     */
    public function saveimgs_files($imgs = null , $type = null)
    {

        //获取保存图片配置s
        $imgconfig_savepath = c("img_save.save_path");
        $imgconfig_size     = c("img_save.size");
        $saveflag = false;
        $imgresarr = array();//保存图片路径
        $origin_img_path = array();//原图路径

        if ($imgs && $imgconfig_savepath[$type])
        {

            $origin_img_save_flag   = true;
            foreach($imgconfig_savepath[$type] as $k => $v)
            {

                if(!is_dir($v.date('ymd')))
                {
                    mkdir($v.date('ymd'),0777,true);
                }

                if ($k == 'origin')
                {
                    $this->think_upload->rootpath = $v;
                    $this->think_upload->subname = date('ymd');
                    $this->think_upload->savename = array('uniqid','');
                    $saveres = $this->think_upload->upload($imgs);

                    if ($saveres)
                    {
                        $saveflag = true;
                        foreach ($saveres as $srk => $srv)
                        {
                            $origin_img_path[] = $v.$saveres[$srk]['savepath'].$saveres[$srk]['savename'];
                            $filename = $saveres[$srk]['savepath'].$saveres[$srk]['savename'];
                            $imgresarr[] = $filename;
                        }


                    }
                }
                else
                {
                    foreach($origin_img_path as $oipk => $oipv)
                    {
                        if ($saveflag)
                        {
                            $width = $imgconfig_size[$type][$k]['w'];
                            $height = $imgconfig_size[$type][$k]['h'];
                            $this->think_image->open($oipv);
                            $savethumb = $this->think_image->thumb($width, $height,3)->save($v.$imgresarr[$oipk]);
                            if (!$savethumb)
                            {
                                $saveflag = false;
                                break;
                            }
                        }
                    }

                }

            }

            if ($saveflag)
            {
                $saveflag = $imgresarr;
            }
        }
        return $saveflag;
    }

    /*
     * 保存微信头像 - url
     *
     */
    public function save_wximg($picurl = '',$type = null)
    {

        $ch = curl_init($picurl);
        curl_setopt($ch, curlopt_header, 0);
        curl_setopt($ch, curlopt_nobody, 0);    //对body进行输出。
        curl_setopt($ch, curlopt_returntransfer, 1);
        $package = curl_exec($ch);
        $httpinfo = curl_getinfo($ch);
        curl_close($ch);
        $media = array_merge(array('mediabody' => $package), $httpinfo);

        //求出文件格式
        preg_match('/\w\/(\w+)/i', $media["content_type"], $extmatches);
        $fileext = $extmatches[1];

        $savename = md5(microtime(true)).".{$fileext}";

        //获取保存图片配置
        $imgconfig_savepath = c("img_save.save_path");
        $imgconfig_size     = c("img_save.size");
        $saveflag = false;

        if ($imgconfig_savepath[$type])
        {

            $origin_img_save_flag   = true;
            foreach($imgconfig_savepath[$type] as $k => $v)
            {

                if(!is_dir($v.date('ymd')))
                {
                    mkdir($v.date('ymd'),0777,true);
                }

                if ($k == 'origin')
                {
                    file_put_contents($v.'/'.date('ymd').'/'.$savename,$media['mediabody']);

                    $origin_img_path = $v.'/'.date('ymd').'/'.$savename;
                    $this->think_image->open($origin_img_path);
                    $filename = date('ymd').'/'.$savename;
                }
                else
                {
                    if ($origin_img_save_flag)
                    {
                        $width = $imgconfig_size[$type][$k]['w'];
                        $height = $imgconfig_size[$type][$k]['h'];
                        $saveflag = $this->think_image->thumb($width, $height,3)->save($v.$filename);

                        if (!$saveflag)
                        {
                            $saveflag = false;
                            $origin_img_save_flag = false;
                        }
                        else
                        {
                            $saveflag = $filename;
                        }
                    }

                }
            }
        }
        return $saveflag;

    }

    /*
     *  保存file类型文件
     *
     */
    public function saveimg_wx($wximg = array() , $type = null)
    {

        //获取保存图片配置
        $imgconfig_savepath = c("img_save.save_path");
        $imgconfig_size     = c("img_save.size");
        $saveflag = false;
        $imgresarr = array();
        
        if ($wximg && $imgconfig_savepath[$type])
        {


            foreach ($wximg as $wik => $wiv)
            {

                $wximg = $this->getwximg($wiv);

                $origin_img_save_flag   = true;
                foreach($imgconfig_savepath[$type] as $k => $v)
                {

                    if(!is_dir($v.date('ymd')))
                    {
                        mkdir($v.date('ymd'),0777,true);
                    }

                    if ($k == 'origin')
                    {
                        file_put_contents($v.'/'.date('ymd').'/'.$wximg['savename'],$wximg['imgmedia']['mediabody']);

                        $origin_img_path = $v.'/'.date('ymd').'/'.$wximg['savename'];
                        $this->think_image->open($origin_img_path);
                        $filename = date('ymd').'/'.$wximg['savename'];
                        $imgresarr[] = $filename;
                    }
                    else
                    {
                        if ($origin_img_save_flag)
                        {
                            $width = $imgconfig_size[$type][$k]['w'];
                            $height = $imgconfig_size[$type][$k]['h'];
                            $saveflag = $this->think_image->thumb($width, $height,3)->save($v.$filename);

                            if (!$saveflag)
                            {
                                $saveflag = false;
                                $origin_img_save_flag = false;
                            }
                            else
                            {
                                $saveflag = $filename;
                            }
                        }

                    }
                }
            }


            if($saveflag)
            {
                $saveflag = $imgresarr;
            }

        }
        return $saveflag;
    }
　　

    /*
     * 保存用户的推广图片   在图片上写字!!!!
     */
    public function save_usershareimg($bg_img_path = '' , $head_img_path = '' , $qrcode_img_path = '' , $savefile = '' , $username = '' , $userdscp = '' , $font_path = '')
    {

        
        //设置头像图片为圆角
        $head_img_radius = $this->radius_img($head_img_path,240);
        //合并到背景图中
        $this->mergeimage($bg_img_path,$head_img_radius,$savefile,array('left' => 200, 'top' => 55, 'width' => 480, 'height' => 480));
        //设置名称
        $this->writetext($savefile, $savefile, $username,255,255,255,1010,32,$font_path, array());
        //设置二维码内容
        $this->mergeimage($savefile,$qrcode_img_path,$savefile,array('left' => 255, 'top' => 684, 'width' => 250, 'height' => 245));

        return $savefile;
    }

    /*
     * 合并图片
     */
    private function mergeimage($bg_img, $main_img, $savefile, $param)
    {

        extract($param);
//        list($bgwidth, $bgheight) = getimagesize($bg_img);
        $bgimg = $this->imagecreate($bg_img);
        if (!is_resource($main_img))
        {
            list($mainwidth, $mainheight) = getimagesize($main_img);
            $mainimg = $this->imagecreate($main_img);
        }
        else
        {
            $mainimg = $main_img;

            $mainwidth = $width;
            $mainheight = $height;
        }
        imagecopyresized($bgimg, $mainimg, $left, $top, 0, 0, $width, $height, $mainwidth, $mainheight);
//        imagecopyresized($bgimg, $mainimg, $left, $top, 0, 0, $width, $height, $width,$height);
        ob_start();
        // output jpeg (or any other chosen) format & quality
        imagejpeg($bgimg, null, 100);
        $contents = ob_get_contents();
        ob_end_clean();
        imagedestroy($bgimg);
        imagedestroy($mainimg);
        $fh = fopen($savefile, "w+");
        fwrite($fh, $contents);
        fclose($fh);
    }

    /*
     * 图片写文字
     * $bg_img 背景图片
     * $savefile 保存图片路径
     * $text 文字
     * $fontcolor 字体颜色
     * $top 图片距离顶端高度
     * $fontsize 字体大小
     * $font 字体路径
     * $param 传递的参数
     */
    private function writetext($bg_img, $savefile, $text, $colorr,$colorg,$colorb , $top , $fontsize , $font , $param = array())
    {
        list($bgwidth, $bgheight) = getimagesize($bg_img);
        $im = imagecreatefromjpeg($bg_img);

        $fontcolor = imagecolorallocate($im, $colorr, $colorg, $colorb);//字的rgb颜色
        $str = mb_convert_encoding($text, "html-entities", "utf-8");;//解决乱码问题

        $fontbox = imagettfbbox($fontsize, 0, $font, $str);//文字水平居中实质
        $width = imagesx($im);
        imagettftext($im, $fontsize, 0, ceil(($width - $fontbox[2]) / 2), $top, $fontcolor, $font, $str);


        ob_start();
        // output jpeg (or any other chosen) format & quality
        imagejpeg($im, null, 100);
        $contents = ob_get_contents();
        ob_end_clean();
        imagedestroy($im);
        $fh = fopen($savefile, "w+");
        fwrite($fh, $contents);
        fclose($fh);
    }

    /**
     * 处理圆角图片
     * @param  string $imgpath 源图片路径
     * @param  integer $radius 圆角半径长度默认为15,处理成圆型
     * @return [type]           [description]
     */
    public function radius_img($imgpath = '', $radius = 65)
    {
        $ext = pathinfo($imgpath);
        $src_img = null;
        switch ($ext['extension']) {
            case 'jpg':
                $src_img = imagecreatefromjpeg($imgpath);
                break;
            case 'png':
                $src_img = imagecreatefrompng($imgpath);
                break;
            default:
                $src_img = imagecreatefromjpeg($imgpath);
                break;
        }
        $wh = getimagesize($imgpath);
        $w = $wh[0];
        $h = $wh[1];
        // $radius = $radius == 0 ? (min($w, $h) / 2) : $radius;
        $img = imagecreatetruecolor($w, $h);
        //这一句一定要有
        imagesavealpha($img, true);
        //拾取一个完全透明的颜色,最后一个参数127为全透明
        $bg = imagecolorallocatealpha($img, 255, 255, 255, 127);
        imagefill($img, 0, 0, $bg);
        $r = $radius; //圆 角半径
        for ($x = 0; $x < $w; $x++) {
            for ($y = 0; $y < $h; $y++) {
                $rgbcolor = imagecolorat($src_img, $x, $y);
                if (($x >= $radius && $x <= ($w - $radius)) || ($y >= $radius && $y <= ($h - $radius))) {
                    //不在四角的范围内,直接画
                    imagesetpixel($img, $x, $y, $rgbcolor);
                } else {
                    //在四角的范围内选择画
                    //上左
                    $y_x = $r; //圆心x坐标
                    $y_y = $r; //圆心y坐标
                    if (((($x - $y_x) * ($x - $y_x) + ($y - $y_y) * ($y - $y_y)) <= ($r * $r))) {
                        imagesetpixel($img, $x, $y, $rgbcolor);
                    }
                    //上右
                    $y_x = $w - $r; //圆心x坐标
                    $y_y = $r; //圆心y坐标
                    if (((($x - $y_x) * ($x - $y_x) + ($y - $y_y) * ($y - $y_y)) <= ($r * $r))) {
                        imagesetpixel($img, $x, $y, $rgbcolor);
                    }
                    //下左
                    $y_x = $r; //圆心x坐标
                    $y_y = $h - $r; //圆心y坐标
                    if (((($x - $y_x) * ($x - $y_x) + ($y - $y_y) * ($y - $y_y)) <= ($r * $r))) {
                        imagesetpixel($img, $x, $y, $rgbcolor);
                    }
                    //下右
                    $y_x = $w - $r; //圆心x坐标
                    $y_y = $h - $r; //圆心y坐标
                    if (((($x - $y_x) * ($x - $y_x) + ($y - $y_y) * ($y - $y_y)) <= ($r * $r))) {
                        imagesetpixel($img, $x, $y, $rgbcolor);
                    }
                }
            }
        }
        return $img;
    }

    private function imagecreate($bg)
    {
        $bgimg = @imagecreatefromjpeg($bg);
        if (false == $bgimg) {
            $bgimg = @imagecreatefrompng($bg);
        }
        if (false == $bgimg) {
            $bgimg = @imagecreatefromgif($bg);
        }
        return $bgimg;
    }


    /*
     * 下载微信服务器的图片
     * media_id    微信的媒体id
     * type        保存图片类型
     * */
    public function getwximg($mediaid)
    {
        if(!class_exists('\jssdk') && !class_exists('\wxpayconfig'))
        {
            vendor('wxsdkapi.jssdk');
            vendor('wxpayapi.lib.wxpay#config');
        }
        $res = new \jssdk(c('weixinpay_config.appid'),c('weixinpay_config.appsecret'));
        $accesstoken = $res->getaccesstoken();
    
//    $mediaid = 'cvqpihdppthutayzs27gk6rn4-dsea6azntjxcg7_vaeuaakcl53x32hmkxhgisd';
//    $accesstoken = 'khaopjy444kj06lch9esj-73pkefftgir3l45ruruuxv1ktjgxyfepj-ctif_ouyakyyb5dk2r9l_wc-wdw2usqgqbmobc6dzpimuhpqxb8jxz41culdtjiaezk8vf5kwssjaaaaww';
        $picurl = "http://file.api.weixin.qq.com/cgi-bin/media/get?access_token=$accesstoken&media_id=$mediaid";

        $ch = curl_init($picurl);
        curl_setopt($ch, curlopt_header, 0);
        curl_setopt($ch, curlopt_nobody, 0);    //对body进行输出。
        curl_setopt($ch, curlopt_returntransfer, 1);
        $package = curl_exec($ch);
        $httpinfo = curl_getinfo($ch);
        curl_close($ch);
        $media = array_merge(array('mediabody' => $package), $httpinfo);

        //求出文件格式
        preg_match('/\w\/(\w+)/i', $media["content_type"], $extmatches);
        $fileext = $extmatches[1];

        $savename = md5(microtime(true)).".{$fileext}";

        $img = array('imgmedia'=>$media,'savename'=>$savename);

        return $img;
    }
        /*
     * 下载微信服务器的图片
     * media_id    微信的媒体id
     * type        保存图片类型
     * */
    public function getwximg2($mediaid,$file)
    {
        if(!class_exists('\jssdk') && !class_exists('\wxpayconfig'))
        {
            vendor('wxsdkapi.jssdk');
            vendor('wxpayapi.lib.wxpay#config');
        }
        $res = new \jssdk(c('weixinpay_config.appid'),c('weixinpay_config.appsecret'));
        $accesstoken = $res->getaccesstoken();
        $picurl = "http://file.api.weixin.qq.com/cgi-bin/media/get?access_token=$accesstoken&media_id=$mediaid";
    
        
       

        return httpcopy($picurl,$file);
    }

}

 

调用方法:

/**
     * 生成图片
     * @param varchar  tid 任务id
     * @httpmethod post
     * @response 响应数据
     * {
     *   "resulttype": "1000",
     *   "message": "上传成功",
     *   "appenddata": "图片路径",
     * }
     */
    public function uploadnavimg()
    {
        $tid=util::getsafetext(i('post.tid'));
        $imgeven = a('gszc/img','event');
        //查出公司名称
        $res = m('gszc_tasks as t')
            ->join('app_gszc_userinfo as u on u.tid=t.id')
            ->where('t.id='.$tid)
            ->field('u.*,t.lastname')
            ->find();

        //主营业务范围
        $zyywfws = explode('、',$res['zyywfw']);
        $zyywfw = array_slice($zyywfws, 0,3);  //获取前三个主营业范围
        $zyywfw2 = array_slice($zyywfws, 3,6);  //获取后三个主营业务范围

        $imagename = date("his",time())."_".rand(1111,9999).'.jpg';
        $dir = date('ymd');
        $path = 'uploads/company/'.$dir;
        if (!is_dir($path)){ //判断目录是否存在 不存在就创建
            mkdir($path,0777,true);
        }
        $img = $imgeven->save_usershareimg($_server['document_root']."/uploads/test.png",'','',$_server['document_root']."/".$path."/". $imagename,$res['lastname'],$zyywfw, $zyywfw2, '',$_server['document_root']."/uploads/pingfang bold.ttf");

        if($img){
            //生成照片成功 保存到任务表里
            $tasks = m('gszc_tasks')->where('id='.$tid)->setfield('lastpic',$path."/".$imagename);
            if($tasks){
                $lujing = $path."/".$imagename;
                $this->array_return['errno']=self::__ok__;
                $this->array_return['errmsg']='生成成功！';
                $this->array_return['data']= $lujing ;
                $this->ajaxreturn($this->array_return);
            }
        }else{
            $this->array_return['errno']=self::__error__;
            $this->array_return['errmsg']='生成失败！';
            $this->array_return['data']=[];
            $this->ajaxreturn($this->array_return);
        }
    }

        $i = 528;
        $j = 113;
        foreach($zyywfw as $k=>$v){

            //设置前三个主营业务范围
            $this->copywritetext($savefile, $savefile, $v,254,253,254, $j , $i ,11,$font_path, array());
            $j = $j+135;

        }