这部分代码是写在项目上的代码，THINKPHP3.1如果迁移到其他的地方应该要稍稍改动一下以适合自己的项目
function get_bbox($text,$fsize,$ffile){
return imagettfbbox($fsize, 0, $ffile, $text);
}
function text_height ($text ,$fsize,$ffile) {
$box = $this->get_bbox($text,$fsize,$ffile);
$height = $box[3] - $box[5];
return $height;
}
//上传到aliyun
function uploadtooss($bucket, $localfilepath, $objname) {
$uploadoss = new Aliyunoss($bucket);
return $uploadoss->upload_by_file($objname, $localfilepath);
}
function getalluser(){
$data=M('kuaidati_user')->order('id desc')->select();
dump($data);
}
function ifexsitobj($bucket, $objname) {
$uploadoss = new Aliyunoss($bucket);
return $uploadoss->is_object_exist($objname);
}
function autowrap($fontsize, $angle, $fontface, $string, $width) {
// 这几个变量分别是 字体大小, 角度, 字体名称, 字符串, 预设宽度
$content = "";
// 将字符串拆分成一个个单字 保存到数组 letter 中
for ($i=0;$i<mb_strlen($string,'utf8');$i++) {
$letter[] = mb_substr($string, $i, 1,'utf-8');
}
foreach ($letter as $l) {
$teststr = $content." ".$l;
$testbox = imagettfbbox($fontsize, $angle, $fontface, $teststr);//这个里面是磅值
// 判断拼接后的字符串是否超过预设的宽度
if ((($testbox[2]-$testbox[0]) > $width) && ($content !== "")) {
$content .= "\n";
}
$content .= $l;
}
return $content;
}
function api_notice_increment($url, $data){
$ch = curl_init();
$header = "Accept-Charset: utf-8";
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($url, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');
curl_setopt($ch, CURLOPT_FOLLOWLOdCATION, 1);
curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$tmpInfo = curl_exec($ch);
if (curl_errno($ch)) {
return false;
}else{
return $tmpInfo;
}
}
public function get_random_key($len=8) {
$key = "";
$pattern = '1234567890abcdefghijklmnopqrstuvwxyz';
for ($i = 0; $i < $len; $i++) {
$key.= $pattern{mt_rand(0, 35)}; //生成php随机数
}
return $key;
}
public function circle($url,$path){
$w = 430; $h=430; // original size
$dest_path=$path;
$src = imagecreatefromstring($url);
$newpic = imagecreatetruecolor($w,$h);
imagealphablending($newpic,false);
$transparent = imagecolorallocatealpha($newpic, 233, 40, 59, 0);
$r=$w/2;
for($x=0;$x<$w;$x++)
for($y=0;$y<$h;$y++){
$c = imagecolorat($src,$x,$y);
$_x = $x - $w/2;
$_y = $y - $h/2;
if((($_x*$_x) + ($_y*$_y)) < ($r*$r)){
imagesetpixel($newpic,$x,$y,$c);
}else{
imagesetpixel($newpic,$x,$y,$transparent);
}
}
imagesavealpha($newpic, true);
// header('Content-Type: image/png');
imagepng($newpic, $dest_path);
imagedestroy($newpic);
imagedestroy($src);
unlink($url);
// return $dest_path;
}
public function getimage(){
$id=145;
$Qsubject="测试PHP在图片上面文字生成";
$answer=array(
array('answer_key'=>'测试选项1'),
array('answer_key'=>'测试选项2'),
array('answer_key'=>'测试选项3'),
array('answer_key'=>'测试选项4')
);
$customermessage=new WechatSendCustomerMessage("VQSKmPFVS1532925182");
//内部方法获取微信的access_token
$access_token=$customermessage->get_token();
//获取二维码
$path="pages/userceter/userceter?id=".$id;
$width=430;
$post_data='{"path":"'.$path.'","width":'.$width.'}';
//$url="https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=".$access_token;
//获取小程序码
$url="https://api.weixin.qq.com/wxa/getwxacode?access_token=".$access_token;
$result=$this->api_notice_increment($url,$post_data);
if($result){
//服务器上面的路径
$returnpath = dirname(__FILE__) . '/' . '../../../../wemarkdata/updatedata/tmp/';
$itype = 'jpg';
$filename = time() . $this->get_random_key(8) . '.' . $itype;
$filepath = $returnpath . $filename; //文件路径
$urlprefix = 'xcximg.xxx.cn'; //域名
$bucket = 'cardzan'; //阿里云的bucket
// $file_name = time() . $this->get_random_key(8) . '.png';
if (!file_exists($filepath)) {
$this->circle($result,$filepath); //生成圆形的二维码图片，放在服务器上面
$bg2="https://www.xxx.cn/themes/Xcxdati/bg2.png"; //背景图片路径
$a="https://www.xxx.cn/themes/Xcxdati/a.png";
$b="https://www.xxx.cn/themes/Xcxdati/b.png";
$c="https://www.xxx.cn/themes/Xcxdati/c.png";
$d="https://www.xxx.cn/themes/Xcxdati/d.png";
$txturl="http://test.xxx.cn/themes/Xcxdati/txt.png"; //文字图片路径
$txt = imagecreatefromstring(file_get_contents($txturl));
$answeroption=array(
imagecreatefromstring(file_get_contents($a)),
imagecreatefromstring(file_get_contents($b)),
imagecreatefromstring(file_get_contents($c)),
imagecreatefromstring(file_get_contents($d))
);
$tempfilename=time().$this->get_random_key(8).'.png';
$tempurl = $returnpath.$tempfilename;
$BGT = imagecreatefromstring(file_get_contents($bg2));
$code = imagecreatefromstring(file_get_contents($filepath));
//注意字体文件的位置，自己文件路径错误文字显示不出来
$font = dirname(__FILE__)."/./../Xcxdati/fonts/msyh.ttc"; // 字体文件
$color = imagecolorallocate($BGT,102,102,102); // 文字颜色
$content=$this->autowrap(28,0,$font,$Qsubject,620);
//autowrap($fontsize, $angle, $fontface, $string, $width)
// 这几个变量分别是 字体大小, 角度, 字体名称, 字符串, 预设宽度
$posY = $this->text_height($content,28,$font); //问题的高度
imagettftext($BGT,28,0,70,300,$color,$font,$content); // 创建文字
$posY+=300;
for($k=0;$k<count($answer);$k++){
$text = $this->autowrap(28,0,$font,$answer[$k]['answer_key'],620);
$posY =$posY+$this->text_height($answer[$k]['answer_key'],28,$font)+40;
imagettftext($BGT,28,0,130,$posY,$color,$font,$text); // 创建文字
imagecopyresampled($BGT, $answeroption[$k], 70,($posY-35), 0, 0,42,42,42,42);
}
$logo_width = imagesx($code);//二维码图片宽度
$logo_height = imagesy($code);//二维码图片高度
imagecopyresampled($BGT, $code, 290,1030, 0, 0,170,170,$logo_width,$logo_height);
imagecopyresampled($BGT, $txt, 160,1245, 0, 0,418,37,836,74);
imagepng($BGT, $tempurl); //合成图片
$filename = time() . $this->get_random_key(8) . '.png';
$ossfilename = 'xcximg/pic/' . $filename;
$status = $this->uploadtooss($bucket, $tempurl, $ossfilename); //上传到阿里云
$src= 'https://'.$urlprefix .'/'.$ossfilename;
if($status){
// $res['status']=1;
// $res['data']=array('src'=>$src);
// echo json_encode($res);
echo '<img src="'.$src.'">';
}
}else{
echo 0;
}
}else{
echo 0;
}
}
来源：https://www.cnblogs.com/zsdblog/p/9455740.html