前提:朋友弄了一个培训机构,培训考试合格后,给发证书,需要一个证书查询系统。委托我给弄一个,花了几个晚上给写的证书查询系统。
实现功能:
技术栈:
4. ThinkPHP8.0
5. MySQL8.0.12
6. layui
有几个技术点,得记录下:
1、给一个证书模板、一寸照片、两个电子印章图片,这个技术点是:GD库添加水印技术,水印添加也包括文字水印
添加扩展:
"ext-gd": "*",
相关代码:
// 向不同格式的图片中间画一个字符串(也是文字水印)
public function image()
{
// $id = Request::param('id');
$one = Db::table('certificate')->where(Request::param())->find();
// $this->pic($one['id']);
/*$one = [
"certificate_no" => "440420230078",
"create_time" => "2022-10-10",
"end_time" => "2032-10-10",
"id" => 8,
"id_no" => "4404202206223919",
"id_type" => "身份证",
"institution" => "智能研究院",
"job" => "电工",
"name" => "曹操",
"occupation" => "低压电工证",
"phone" => "13588889999",
"sex" => "男",
"skill_level" => "中级",
"start_time" => "2022-10-10"
];*/
// 图片路径
$imagePath = './static/images/zsmb.png';
// 图片信息
$imageInfo = getimagesize($imagePath);
// [0] => 2000 [1] => 1414 [2] => 3 [3] => width="2000" height="1414" [bits] => 8 [mime] => image/png
// 图片扩展名
$imageExtension = image_type_to_extension($imageInfo[2], false);
// png
// 获取图片
$func = 'imagecreatefrom' . $imageExtension;
// imagecreatefrompng
$image = $func($imagePath);
/***************************** 文字水印开始 ********************************/
// 水印字体
$font = './static/fonts/SourceHanSansSC-Medium-2.otf';
// 水印文字
// $content = '曹操';
// 水印颜色
$color = imagecolorallocatealpha($image, 0, 0, 0, 30);
// 添加水印
imagettftext($image, 22, 0, 1450, 650, $color, $font, $one['name']);
imagettftext($image, 22, 0, 1450, 740, $color, $font, $one['id_type']);
imagettftext($image, 22, 0, 1450, 830, $color, $font, $one['id_no']);
imagettftext($image, 22, 0, 1450, 910, $color, $font, $one['occupation']);
imagettftext($image, 22, 0, 1480, 985, $color, $font, $one['job']);
imagettftext($image, 22, 0, 1480, 1075, $color, $font, $one['skill_level']);
imagettftext($image, 22, 0, 1450, 1155, $color, $font, $one['certificate_no']);
imagettftext($image, 22, 0, 750, 1080, $color, $font, date("Y年n月j日", strtotime($one['create_time'])));
imagettftext($image, 22, 0, 300, 1080, $color, $font, date("Y年n月j日", strtotime($one['create_time'])));
imagettftext($image, 22, 0, 500, 498, $color, $font, $one['institution']);
/***************************** 文字水印开始 ********************************/
/***************************** 图片水印开始 ********************************/
// 获取水印图片
$watermarkPath = './static/images/water.png';
$watermarkInfo = getimagesize($watermarkPath);
$watermarkExtension = image_type_to_extension(getimagesize($watermarkPath)[2], false);
$func = 'imagecreatefrom' . $watermarkExtension;
$watermark = $func($watermarkPath);
// 添加图片水印
imagecopymerge($image, $watermark, 1280, 180, 0, 0, $watermarkInfo[0], $watermarkInfo[1], 100);
// 销毁水印图片
imagedestroy($watermark);
// 生成二维码
$qr = "./static/images/qr.png";
$str = 'http://thinkcms.cc/index/index/image?id=' . $one['id'];
$img_data = \tekintian\TekinQR::getQRImg($str, 5, null, 3);
file_put_contents($qr, $img_data);
$watermarkInfo = getimagesize($qr);
$watermarkExtension = image_type_to_extension(getimagesize($qr)[2], false);
$func = 'imagecreatefrom' . $watermarkExtension;
$watermark = $func($qr);
// 添加图片水印
imagecopymerge($image, $watermark, 1580, 370, 0, 0, $watermarkInfo[0], $watermarkInfo[1], 100);
// 销毁水印图片
imagedestroy($watermark);
$watermarkPath = './static/images/nyyz.png';
$watermarkInfo = getimagesize($watermarkPath);
$watermarkExtension = image_type_to_extension(getimagesize($watermarkPath)[2], false);
$func = 'imagecreatefrom' . $watermarkExtension;
$watermark = $func($watermarkPath);
// 添加图片水印
imagecopymerge($image, $watermark, 220, 850, 0, 0, $watermarkInfo[0], $watermarkInfo[1], 100);
// 销毁水印图片
imagedestroy($watermark);
$watermarkPath = './static/images/gjyz.png';
$watermarkInfo = getimagesize($watermarkPath);
$watermarkExtension = image_type_to_extension(getimagesize($watermarkPath)[2], false);
$func = 'imagecreatefrom' . $watermarkExtension;
$watermark = $func($watermarkPath);
// 添加图片水印
imagecopymerge($image, $watermark, 720, 850, 0, 0, $watermarkInfo[0], $watermarkInfo[1], 100);
// 销毁水印图片
imagedestroy($watermark);
/***************************** 图片水印开始 ********************************/
// 输出图片
header('Content-Type:' . $imageInfo['mime']);
$func = 'image' . $imageExtension;
$func($image, null, 6);
// 销毁图片
imagedestroy($image);
exit;
}
2、证书里的二维码,扫码就能扫码出来,是PHP生成二维码,其二维码中间也是支持加logo的
添加扩展:
"tekintian/phpqrcode": "^1.1",
相关代码:
// 生成二维码
$qr = "./static/images/qr.png";
// 这个本地测试域名,不是外网,扫码不了,上线改成外网扫了才有效
$str = 'http://thinkcms.cc/index/index/image?id=' . $one['id'];
$img_data = \tekintian\TekinQR::getQRImg($str, 5, null, 3);
file_put_contents($qr, $img_data);
3、后台实现带图片excel数据导入,这个摸索了点时间,因为PHPExcel停止维护了,改了半天源码还有问题,最后放弃了,换了一个扩展。
添加扩展:
"phpoffice/phpspreadsheet": "^1.20.0"
相关代码:
/**
* 字母序列化为数字
*/
public function ABC2decimal($abc)
{
$ten = 0;
$len = strlen($abc);
for ($i = 1; $i <= $len; $i++) {
$char = substr($abc, 0 - $i, 1);//反向获取单个字符
$int = ord($char);
$ten += ($int - 65) * pow(26, $i - 1);
}
return $ten;
}
public function excel()
{
if ($file = request()->file('excel')) {
try {
$saveName = Filesystem::disk('public')->putFile('/static/upload/excels', $file);
if (!is_file($saveName)) {
return json(['code' => 1, 'msg' => '文件不存在', 'data' => null]);
}
$ext = pathinfo($saveName, PATHINFO_EXTENSION);
// xls不支持图片导入
// if (!in_array($ext, ['xlsx', 'xls'])) {
if (!in_array($ext, ['xlsx'])) {
return json(['code' => 1, 'msg' => '文件类型不正确', 'data' => null]);
}
// 有两种格式,xlsx和xls
if ($ext == 'xlsx') {
$objReader = IOFactory::createReader('Xlsx');
} else {
$objReader = IOFactory::createReader('Xls');
}
// 图片保存路径
$imageFilePath1 = root_path() . '/public/'; // 图片保存目录
$imageFilePath2 = 'static/upload/images/' . date("Ymd") . '/';
$imageFilePath = $imageFilePath1 . $imageFilePath2;
if (!file_exists($imageFilePath)) {
mkdir("$imageFilePath", 0777, true);
}
// 载入excel文件
$excel = $objReader->load($saveName);
// 读取第一张表
$sheet = $excel->getActiveSheet();
// 读取总行数
$highestRow = $sheet->getHighestRow();
// 读取第一张表转换成数组
$data = $sheet->toArray();
// 处理图片
foreach ($sheet->getDrawingCollection() as $drawing) {
list($startColumn, $startRow) = Coordinate::coordinateFromString($drawing->getCoordinates());
$imageFileName = $drawing->getIndexedFilename(); // 获取文件名
switch ($drawing->getExtension()) {
case 'jpg':
case 'jpeg':
$source = imagecreatefromjpeg($drawing->getPath());
imagejpeg($source, $imageFilePath . $imageFileName);
break;
case 'gif':
$source = imagecreatefromgif($drawing->getPath());
imagegif($source, $imageFilePath . $imageFileName);
break;
case 'png':
$source = imagecreatefrompng($drawing->getPath());
imagepng($source, $imageFilePath . $imageFileName);
break;
}
$startColumn = $this->ABC2decimal($startColumn);
$data[$startRow - 1][$startColumn] = $imageFilePath2 . $imageFileName;
}
// 数据写入数据库
$add_data = [];
for ($i = 1; $i <= $highestRow - 1; $i++) {
$add_data[$i]['institution'] = $data[$i][0];
$add_data[$i]['name'] = $data[$i][1];
$add_data[$i]['sex'] = $data[$i][2];
$add_data[$i]['phone'] = $data[$i][3];
$add_data[$i]['id_type'] = $data[$i][4];
$add_data[$i]['id_no'] = $data[$i][5];
$add_data[$i]['occupation'] = $data[$i][6];
$add_data[$i]['job'] = $data[$i][7];
$add_data[$i]['skill_level'] = $data[$i][8];
$add_data[$i]['certificate_no'] = $data[$i][9];
$add_data[$i]['create_time'] = $data[$i][10];
$add_data[$i]['start_time'] = $data[$i][11];
$add_data[$i]['end_time'] = $data[$i][12];
$add_data[$i]['path'] = $data[$i][13];
}
// 数据插入数据库
$success_count = Db::table('certificate')->insertAll($add_data);
if ($success_count > 0) {
return json(['code' => 0, 'msg' => '数据插入成功', 'data' => null]);
} else {
return json(['code' => 1, 'msg' => '数据插入失败', 'data' => null]);
}
} catch (\Exception $e) {
return json(['code' => 1, 'msg' => $e->getMessage(), 'data' => null]);
}
} else {
return json(['code' => 1, 'msg' => '上传文件不能为空', 'data' => null]);
}
}
全局config配置middleware.php中
// 中间件配置
return [
// 别名或分组
'alias' => [],
// 优先级设置,此数组中的中间件会按照数组中的顺序优先执行
'priority' => ['think\middleware\SessionInit'],
];
后端应用middleware.php中
<?php
// 这是系统自动生成的middleware定义文件
return [
// 无关代码省略...
\think\middleware\SessionInit::class
];