【转载】PHP实现图片指定区域打印文字和图片

014512

        PHP实现图片指定区域打印文字和图片

        在一些通过模板制作效果图的需求中需要用到图片上加文字或者加图片。

        下面这个类可以实现在某个区域内(通过left、top，width、height圈定区域)内居中打印文字和图片，文字可以自动换行，水平和垂直居中。

<?php
 
//拼图
class DrawText{
     
    private $sourceImg; //原图
    public  $sourceImgSize = [0,0]; //原图尺寸
     
    private $location_x = 0;
    private $location_y = 0;
     
    private $img_width = 300; //图片宽度
    private $img_height = 300; //图片高度
    private $img_padding = 0; //图片边距
    private $font_size = 36; //图片字体大小
    private $font_color = [0,0,0];//文字rgb颜色
    const FONT_FILE = __DIR__ . '/msyh.ttf';
     
    //背景图
    function __construct($source_path,$pages=1){
        $this->sourceImg = imagecreatefrompng($source_path);
        list($width, $height, $type, $attr) = getimagesize($source_path);
        $this->sourceImgSize = [$width,$height];
    }
     
    public function move($x,$y){
        $this->location_x = $x;
        $this->location_y = $y;
    }
     
    public function draw($text,$width=300,$height=300,$fsize=36,$fontcolor=[0,0,0]){
        $this->font_color = $fontcolor;
        $this->__create($text,$width,$height,$fsize);
    }
     
    //画图片
    public function drawImage($img,$small_width,$small_height,$big_width,$big_height){
        if(function_exists("imagecopyresampled")){
            imagecopyresampled($this->sourceImg, $img, $this->location_x, $this->location_y, 0, 0, $big_width , $big_height,$small_width, $small_height);
        }else{
            imagecopyresized($this->sourceImg, $img, $this->location_x, $this->location_y, 0, 0, $big_width , $big_height,$small_width, $small_height);
        }
    }
     
    public function show(){
        header("Content-type: image/png");
        imagepng($this->sourceImg);
        imagedestroy($this->sourceImg);
    }
     
    public function getImage(){
        return $this->sourceImg;
    }
     
    public function destroy(){
        imagedestroy($this->sourceImg);
    }
     
    //根据文字绘图片
    private function __create($text,$width=300,$height=300,$fsize=36){
        $this->img_width = $width;
        $this->img_height = $height;
        $this->font_size = $fsize;
 
        $frontColor = imagecolorallocate($this->sourceImg, $this->font_color[0],$this->font_color[1],$this->font_color[2]);
         
        //行信息
        $line_arr = [];
 
        $this->text2line($text,$this->font_size,self::FONT_FILE,$line_arr);
        $tmp = array_column($line_arr,'height');
        $tmp = max($tmp);
        $line_height = $tmp * 1.2; //行间距
         
        $start_y = $this->img_padding;
         
        $total_height = $line_height * count($line_arr); //文字总高度
         
        $area_height = $this->img_height - $this->img_padding * 2;
        if($total_height < $area_height){
            $start_y = ($this->img_height - $total_height) / 2 + $line_height;
        }else if($total_height > $area_height){
            //文本高度大于图片高度，
        }
         
        for($i=0;$i<count($line_arr);$i++){
            $_y = $start_y + $i * $line_height;
            $_x = ($this->img_width - $line_arr[$i]['width']) / 2;
             
            //平移到目标位置
            $_x += $this->location_x;
            $_y += $this->location_y;
             
            imagefttext($this->sourceImg, $this->font_size, 0, $_x, $_y, $frontColor, self::FONT_FILE, $line_arr[$i]['text']);
        }
        //return null;
    }
     
     
    public function createbase64($text,$width=300,$height=300,$fsize=36){
        $path = $this->create($text,$width,$height,$fsize);
        $data = $this->imgToBase64($path);
        @unlink($path);
        return $data;
    }
     
    private function imgToBase64($img_file){
        $img_base64 = '';
        if (file_exists($img_file)) {
            $app_img_file = $img_file; // 图片路径
            $img_info = getimagesize($app_img_file); // 取得图片的大小，类型等
            $fp = fopen($app_img_file, "r"); // 图片是否可读权限
            if ($fp) {
                $filesize = filesize($app_img_file);
                $content = fread($fp, $filesize);
                $file_content = chunk_split(base64_encode($content)); // base64编码
                switch ($img_info[2]) {           //判读图片类型
                    case 1: $img_type = "gif";
                        break;
                    case 2: $img_type = "jpg";
                        break;
                    case 3: $img_type = "png";
                        break;
                }
                $img_base64 = 'data:image/' . $img_type . ';base64,' . $file_content;//合成图片的base64编码
            }
            fclose($fp);
        }
        return $img_base64; //返回图片的base64
    }
     
    //文字分行
    public function text2line($text,$font_size,$font_file,&$line_arr){
        $index = 0;
        $count = 1;
        while(true){
            $line = $this->cnsubstr($text,$index,$count);
            if($line == '') break;
             
            //判断这一行的宽度
            $size = imagettfbbox($font_size,0,$font_file,$line);
            $xsize = abs($size[0]) + abs($size[2]);
            $ysize = abs($size[5]) + abs($size[1]);
             
            $all = implode('',array_column($line_arr,'text')) . $line;
            if(strlen($all) >= strlen($text)){
                //最后一行了
                $line_arr[] = [
                    'text' => $line,
                    'width' => $xsize,
                    'height' => $ysize,
                ];
                break;
            }
             
            if($xsize >= $this->img_width - 2 * $this->img_padding - 14){
                //这行到头了
                $line_arr[] = [
                    'text' => $line,
                    'width' => $xsize,
                    'height' => $ysize,
                ];
                $index += $count;
                $count = 1;
                continue;
            }
            $count++;
        }
    }
     
    public function cnsubstr($str,$start=0,$len=false) {
        if(function_exists('mb_substr')){
            if($len === false)
                return mb_substr($str,$start);
            else
                return mb_substr($str,$start,$len);
        }
        $res = array();
        for($i = 0; $i < strlen($str); $i++) {
            if(ord(substr($str, $i, 1)) > 0xa0) {
                $res[]= substr($str, $i, 3);//utf-8 -> 3，gbk -> 2
                $i+=2;
            }else{
                $res[]= substr($str, $i, 1);
            }
            if(count($res)>=$len) break;
        }
         
        if($len === false){
            $res = array_slice($res,$start);
        }else{
            $res = array_slice($res,$start,$len);
        }
        return implode('',$res);
    }
}
 
/*
$hp = new DrawText('bg.jpg');
$hp->move(164,194);
$hp->draw('钢筋混凝土用热轧带肋钢筋',210,36,10);
$hp->move(750,360);//移动到指定坐标
$hp->draw('595595595',32,47,9); //在指定宽度内以9号字体打印文字
$hp->show();
*/
<?php
 
//拼图
class DrawText{
     
    private $sourceImg; //原图
    public  $sourceImgSize = [0,0]; //原图尺寸
     
    private $location_x = 0;
    private $location_y = 0;
     
    private $img_width = 300; //图片宽度
    private $img_height = 300; //图片高度
    private $img_padding = 0; //图片边距
    private $font_size = 36; //图片字体大小
    private $font_color = [0,0,0];//文字rgb颜色
    const FONT_FILE = __DIR__ . '/msyh.ttf';
     
    //背景图
    function __construct($source_path,$pages=1){
        $this->sourceImg = imagecreatefrompng($source_path);
        list($width, $height, $type, $attr) = getimagesize($source_path);
        $this->sourceImgSize = [$width,$height];
    }
     
    public function move($x,$y){
        $this->location_x = $x;
        $this->location_y = $y;
    }
     
    public function draw($text,$width=300,$height=300,$fsize=36,$fontcolor=[0,0,0]){
        $this->font_color = $fontcolor;
        $this->__create($text,$width,$height,$fsize);
    }
     
    //画图片
    public function drawImage($img,$small_width,$small_height,$big_width,$big_height){
        if(function_exists("imagecopyresampled")){
            imagecopyresampled($this->sourceImg, $img, $this->location_x, $this->location_y, 0, 0, $big_width , $big_height,$small_width, $small_height);
        }else{
            imagecopyresized($this->sourceImg, $img, $this->location_x, $this->location_y, 0, 0, $big_width , $big_height,$small_width, $small_height);
        }
    }
     
    public function show(){
        header("Content-type: image/png");
        imagepng($this->sourceImg);
        imagedestroy($this->sourceImg);
    }
     
    public function getImage(){
        return $this->sourceImg;
    }
     
    public function destroy(){
        imagedestroy($this->sourceImg);
    }
     
    //根据文字绘图片
    private function __create($text,$width=300,$height=300,$fsize=36){
        $this->img_width = $width;
        $this->img_height = $height;
        $this->font_size = $fsize;
 
        $frontColor = imagecolorallocate($this->sourceImg, $this->font_color[0],$this->font_color[1],$this->font_color[2]);
         
        //行信息
        $line_arr = [];
 
        $this->text2line($text,$this->font_size,self::FONT_FILE,$line_arr);
        $tmp = array_column($line_arr,'height');
        $tmp = max($tmp);
        $line_height = $tmp * 1.2; //行间距
         
        $start_y = $this->img_padding;
         
        $total_height = $line_height * count($line_arr); //文字总高度
         
        $area_height = $this->img_height - $this->img_padding * 2;
        if($total_height < $area_height){
            $start_y = ($this->img_height - $total_height) / 2 + $line_height;
        }else if($total_height > $area_height){
            //文本高度大于图片高度，
        }
         
        for($i=0;$i<count($line_arr);$i++){
            $_y = $start_y + $i * $line_height;
            $_x = ($this->img_width - $line_arr[$i]['width']) / 2;
             
            //平移到目标位置
            $_x += $this->location_x;
            $_y += $this->location_y;
             
            imagefttext($this->sourceImg, $this->font_size, 0, $_x, $_y, $frontColor, self::FONT_FILE, $line_arr[$i]['text']);
        }
        //return null;
    }
     
     
    public function createbase64($text,$width=300,$height=300,$fsize=36){
        $path = $this->create($text,$width,$height,$fsize);
        $data = $this->imgToBase64($path);
        @unlink($path);
        return $data;
    }
     
    private function imgToBase64($img_file){
        $img_base64 = '';
        if (file_exists($img_file)) {
            $app_img_file = $img_file; // 图片路径
            $img_info = getimagesize($app_img_file); // 取得图片的大小，类型等
            $fp = fopen($app_img_file, "r"); // 图片是否可读权限
            if ($fp) {
                $filesize = filesize($app_img_file);
                $content = fread($fp, $filesize);
                $file_content = chunk_split(base64_encode($content)); // base64编码
                switch ($img_info[2]) {           //判读图片类型
                    case 1: $img_type = "gif";
                        break;
                    case 2: $img_type = "jpg";
                        break;
                    case 3: $img_type = "png";
                        break;
                }
                $img_base64 = 'data:image/' . $img_type . ';base64,' . $file_content;//合成图片的base64编码
            }
            fclose($fp);
        }
        return $img_base64; //返回图片的base64
    }
     
    //文字分行
    public function text2line($text,$font_size,$font_file,&$line_arr){
        $index = 0;
        $count = 1;
        while(true){
            $line = $this->cnsubstr($text,$index,$count);
            if($line == '') break;
             
            //判断这一行的宽度
            $size = imagettfbbox($font_size,0,$font_file,$line);
            $xsize = abs($size[0]) + abs($size[2]);
            $ysize = abs($size[5]) + abs($size[1]);
             
            $all = implode('',array_column($line_arr,'text')) . $line;
            if(strlen($all) >= strlen($text)){
                //最后一行了
                $line_arr[] = [
                    'text' => $line,
                    'width' => $xsize,
                    'height' => $ysize,
                ];
                break;
            }
             
            if($xsize >= $this->img_width - 2 * $this->img_padding - 14){
                //这行到头了
                $line_arr[] = [
                    'text' => $line,
                    'width' => $xsize,
                    'height' => $ysize,
                ];
                $index += $count;
                $count = 1;
                continue;
            }
            $count++;
        }
    }
     
    public function cnsubstr($str,$start=0,$len=false) {
        if(function_exists('mb_substr')){
            if($len === false)
                return mb_substr($str,$start);
            else
                return mb_substr($str,$start,$len);
        }
        $res = array();
        for($i = 0; $i < strlen($str); $i++) {
            if(ord(substr($str, $i, 1)) > 0xa0) {
                $res[]= substr($str, $i, 3);//utf-8 -> 3，gbk -> 2
                $i+=2;
            }else{
                $res[]= substr($str, $i, 1);
            }
            if(count($res)>=$len) break;
        }
         
        if($len === false){
            $res = array_slice($res,$start);
        }else{
            $res = array_slice($res,$start,$len);
        }
        return implode('',$res);
    }
}
 
/*
$hp = new DrawText('bg.jpg');
$hp->move(164,194);
$hp->draw('钢筋混凝土用热轧带肋钢筋',210,36,10);
$hp->move(750,360);//移动到指定坐标
$hp->draw('595595595',32,47,9); //在指定宽度内以9号字体打印文字
$hp->show();
*/
<?php
 
//拼图
class DrawText{
     
    private $sourceImg; //原图
    public  $sourceImgSize = [0,0]; //原图尺寸
     
    private $location_x = 0;
    private $location_y = 0;
     
    private $img_width = 300; //图片宽度
    private $img_height = 300; //图片高度
    private $img_padding = 0; //图片边距
    private $font_size = 36; //图片字体大小
    private $font_color = [0,0,0];//文字rgb颜色
    const FONT_FILE = __DIR__ . '/msyh.ttf';
     
    //背景图
    function __construct($source_path,$pages=1){
        $this->sourceImg = imagecreatefrompng($source_path);
        list($width, $height, $type, $attr) = getimagesize($source_path);
        $this->sourceImgSize = [$width,$height];
    }
     
    public function move($x,$y){
        $this->location_x = $x;
        $this->location_y = $y;
    }
     
    public function draw($text,$width=300,$height=300,$fsize=36,$fontcolor=[0,0,0]){
        $this->font_color = $fontcolor;
        $this->__create($text,$width,$height,$fsize);
    }
     
    //画图片
    public function drawImage($img,$small_width,$small_height,$big_width,$big_height){
        if(function_exists("imagecopyresampled")){
            imagecopyresampled($this->sourceImg, $img, $this->location_x, $this->location_y, 0, 0, $big_width , $big_height,$small_width, $small_height);
        }else{
            imagecopyresized($this->sourceImg, $img, $this->location_x, $this->location_y, 0, 0, $big_width , $big_height,$small_width, $small_height);
        }
    }
     
    public function show(){
        header("Content-type: image/png");
        imagepng($this->sourceImg);
        imagedestroy($this->sourceImg);
    }
     
    public function getImage(){
        return $this->sourceImg;
    }
     
    public function destroy(){
        imagedestroy($this->sourceImg);
    }
     
    //根据文字绘图片
    private function __create($text,$width=300,$height=300,$fsize=36){
        $this->img_width = $width;
        $this->img_height = $height;
        $this->font_size = $fsize;
 
        $frontColor = imagecolorallocate($this->sourceImg, $this->font_color[0],$this->font_color[1],$this->font_color[2]);
         
        //行信息
        $line_arr = [];
 
        $this->text2line($text,$this->font_size,self::FONT_FILE,$line_arr);
        $tmp = array_column($line_arr,'height');
        $tmp = max($tmp);
        $line_height = $tmp * 1.2; //行间距
         
        $start_y = $this->img_padding;
         
        $total_height = $line_height * count($line_arr); //文字总高度
         
        $area_height = $this->img_height - $this->img_padding * 2;
        if($total_height < $area_height){
            $start_y = ($this->img_height - $total_height) / 2 + $line_height;
        }else if($total_height > $area_height){
            //文本高度大于图片高度，
        }
         
        for($i=0;$i<count($line_arr);$i++){
            $_y = $start_y + $i * $line_height;
            $_x = ($this->img_width - $line_arr[$i]['width']) / 2;
             
            //平移到目标位置
            $_x += $this->location_x;
            $_y += $this->location_y;
             
            imagefttext($this->sourceImg, $this->font_size, 0, $_x, $_y, $frontColor, self::FONT_FILE, $line_arr[$i]['text']);
        }
        //return null;
    }
     
     
    public function createbase64($text,$width=300,$height=300,$fsize=36){
        $path = $this->create($text,$width,$height,$fsize);
        $data = $this->imgToBase64($path);
        @unlink($path);
        return $data;
    }
     
    private function imgToBase64($img_file){
        $img_base64 = '';
        if (file_exists($img_file)) {
            $app_img_file = $img_file; // 图片路径
            $img_info = getimagesize($app_img_file); // 取得图片的大小，类型等
            $fp = fopen($app_img_file, "r"); // 图片是否可读权限
            if ($fp) {
                $filesize = filesize($app_img_file);
                $content = fread($fp, $filesize);
                $file_content = chunk_split(base64_encode($content)); // base64编码
                switch ($img_info[2]) {           //判读图片类型
                    case 1: $img_type = "gif";
                        break;
                    case 2: $img_type = "jpg";
                        break;
                    case 3: $img_type = "png";
                        break;
                }
                $img_base64 = 'data:image/' . $img_type . ';base64,' . $file_content;//合成图片的base64编码
            }
            fclose($fp);
        }
        return $img_base64; //返回图片的base64
    }
     
    //文字分行
    public function text2line($text,$font_size,$font_file,&$line_arr){
        $index = 0;
        $count = 1;
        while(true){
            $line = $this->cnsubstr($text,$index,$count);
            if($line == '') break;
             
            //判断这一行的宽度
            $size = imagettfbbox($font_size,0,$font_file,$line);
            $xsize = abs($size[0]) + abs($size[2]);
            $ysize = abs($size[5]) + abs($size[1]);
             
            $all = implode('',array_column($line_arr,'text')) . $line;
            if(strlen($all) >= strlen($text)){
                //最后一行了
                $line_arr[] = [
                    'text' => $line,
                    'width' => $xsize,
                    'height' => $ysize,
                ];
                break;
            }
             
            if($xsize >= $this->img_width - 2 * $this->img_padding - 14){
                //这行到头了
                $line_arr[] = [
                    'text' => $line,
                    'width' => $xsize,
                    'height' => $ysize,
                ];
                $index += $count;
                $count = 1;
                continue;
            }
            $count++;
        }
    }
     
    public function cnsubstr($str,$start=0,$len=false) {
        if(function_exists('mb_substr')){
            if($len === false)
                return mb_substr($str,$start);
            else
                return mb_substr($str,$start,$len);
        }
        $res = array();
        for($i = 0; $i < strlen($str); $i++) {
            if(ord(substr($str, $i, 1)) > 0xa0) {
                $res[]= substr($str, $i, 3);//utf-8 -> 3，gbk -> 2
                $i+=2;
            }else{
                $res[]= substr($str, $i, 1);
            }
            if(count($res)>=$len) break;
        }
         
        if($len === false){
            $res = array_slice($res,$start);
        }else{
            $res = array_slice($res,$start,$len);
        }
        return implode('',$res);
    }
}
 
/*
$hp = new DrawText('bg.jpg');
$hp->move(164,194);
$hp->draw('钢筋混凝土用热轧带肋钢筋',210,36,10);
$hp->move(750,360);//移动到指定坐标
$hp->draw('595595595',32,47,9); //在指定宽度内以9号字体打印文字
$hp->show();
*/

 

相关字体文件自己下载了使用即可；

【转载】PHP实现图片指定区域打印文字和图片 第1张

 

© 版权声明
文章版权声明 1、本网站名称：KEKC博客
2、本站网址：https://www.kekc.cn
3、本网站的文章部分内容可能来源于网络，仅供大家学习与参考，如有侵权，请联系站长QQ2551654928进行删除处理。
4、本站一律禁止以任何方式发布或转载任何违法的相关信息，访客发现请向站长举报

THE END
站长杂谈
喜欢就支持一下吧
点赞12 分享
In the face of difficulties, be brave, persistent and tirelessly to overcome it.
面对困难的时候，要勇敢、执着、不畏艰辛地去战胜它
KEKC的头像-KEKC博客
相关推荐
评论 抢沙发
头像
欢迎您留下宝贵的见解！
提交
头像

昵称

取消
昵称

请填写用户信息：

  • 昵称(必填)
  • 邮箱(必填)
常用语
请选择评论常用语：
  • 1、谢谢博主分享！
  • 2、博主NB，666
  • 3、感谢楼主分享！
  • 4、感谢大佬分享！
  • 5、教程很好用，谢谢！
 夸夸
夸夸
还有吗！没看够！
表情
[aoman][baiyan][bishi][bizui][cahan][ciya][dabing][daku][deyi][doge][fadai][fanu][fendou][ganga][guzhang][haixiu][hanxiao][zuohengheng][zhuakuang][zhouma][zhemo][zhayanjian][zaijian][yun][youhengheng][yiwen][yinxian][xu][xieyanxiao][xiaoku][xiaojiujie][xia][wunai][wozuimei][weixiao][weiqu][tuosai][tu][touxiao][tiaopi][shui][se][saorao][qiudale][qinqin][qiaoda][piezui][penxue][nanguo][liulei][liuhan][lenghan][leiben][kun][kuaikule][ku][koubi][kelian][keai][jingya][jingxi][jingkong][jie][huaixiao][haqian][aini][OK][qiang][quantou][shengli][woshou][gouyin][baoquan][aixin][bangbangtang][xiaoyanger][xigua][hexie][pijiu][lanqiu][juhua][hecai][haobang][caidao][baojin][chi][dan][kulou][shuai][shouqiang][yangtuo][youling]
代码

请输入代码：

确认
图片

    暂无评论内容

随机文章

1为自定义文章类型添加古腾堡编辑器支持

2一行代码解决IE6,IE7,IE8不兼容问题

3奇安信网站卫士使用教程：网站免费CDN加速+防DDOS/CC攻击+智能高防DNS，支持HTTPS的免费CDN

4再度封城！紧急建方舱！疫情出现反扑迹象…千万警惕！

5Kangle服务器SSL证书安装部署方法

6最新抖音最火小清新html表白网站源码