Detailed explanation of encapsulation of uploading images, files and other classes in Laravel in PHP

墨辰丷
Release: 2023-03-26 15:38:02
Original
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This article mainly introduces the implementation code of PHP Laravel uploading pictures, files and other class encapsulation. Friends in need can refer to it

The specific code is as follows:

 3*1024*1024, //上传的文件大小限制 (0-不做限制) 'exts' => array('jpg','jpeg','gif','png','doc','docx','xls','xlsx','ppt','pptx','pdf','rar','zip'), //允许上传的文件后缀 'subName' => '', //子目录创建方式,[0]-函数名,[1]-参数,多个参数使用数组 'rootPath' => '/uploads/', //保存根路径 'savePath' => '', //保存路径 'thumb' => array(),//是裁剪压缩比例 ); public function __construct($config = array()){ /* 获取配置 */ $this->config = array_merge($this->config, $config); if(!emptyempty($this->config['exts'])){ if (is_string($this->exts)){ $this->config['exts'] = explode(',', $this->exts); } $this->config['exts'] = array_map('strtolower', $this->exts); } $this->config['subName'] = $this->subName ? ltrim($this->subName,'/') : '/'.date('Ymd'); $this->fullPath = rtrim(public_path(),'/').$this->config['rootPath']; } public function __get($name) { return $this->config[$name]; } public function __set($name,$value){ if(isset($this->config[$name])) { $this->config[$name] = $value; } } public function __isset($name){ return isset($this->config[$name]); } /** * 获取最后一次上传错误信息 * @return string 错误信息 */ public function getError(){ return $this->error; } public function upload($file){ if(emptyempty($file)){ $this->error = '没有上传的文件'; return false; } if(!$this->checkRootPath($this->fullPath)){ $this->error = $this->getError(); return false; } $fileSavePath=$this->fullPath.$this->savePath.$this->subName; if(!$this->checkSavePath($fileSavePath)){ $this->error = $this->getError(); return false; } $files =array(); if(!is_array($file)){ //如果不是数组转成数组 $files[]=$file; }else{ $files=$file; } $info = array(); $imgThumb = new \App\ThinkClass\ThumbClass(); foreach ($files as $key=>$f){ $this->file=$f; $f->ext = strtolower($f->getClientOriginalExtension()); /*文件上传检查*/ if (!$this->check($f)){ continue; } $fileName = str_random(12).'.'.$f->ext; /* 保存文件 并记录保存成功的文件 */ if ($this->file->move($fileSavePath,$fileName)) { /*图片按照宽高比例压缩*/ \Log::notice($fileSavePath.$fileName); if(!emptyempty($this->thumb) && is_array($this->thumb)){ $imgThumb ->thumb($this->thumb,$fileSavePath.'/'.$fileName); } $info[]=$this->rootPath.$this->savePath.$this->subName.'/'.$fileName; } } return is_array($info) ? $info : false; } /** * 检测上传根目录 * @param string $rootpath 根目录 * @return boolean true-检测通过,false-检测失败 */ protected function checkRootPath($rootpath){ if(!(is_dir($rootpath) && is_writable($rootpath))){ $this->error = '上传根目录不存在!'; return false; } return true; } /** * 检测上传目录 * @param string $savepath 上传目录 * @return boolean 检测结果,true-通过,false-失败 */ public function checkSavePath($savepath){ /* 检测并创建目录 */ if (!$this->mkdir($savepath )) { return false; } else { /* 检测目录是否可写 */ if (!is_writable($savepath)) { $this->error = '上传目录不可写!'; return false; } else { return true; } } } /** * 检查上传的文件 * @param array $file 文件信息 */ private function check($file) { /* 检查文件大小 */ if (!$this->checkSize($file->getSize())) { $this->error = '上传文件大小不符!'; return false; } /* 检查文件后缀 */ if (!$this->checkExt($file->ext)) { $this->error = '上传文件后缀不允许'; return false; } /* 通过检测 */ return true; } /** * 检查文件大小是否合法 * @param integer $size 数据 */ private function checkSize($size) { return !($size > $this->maxSize) || (0 == $this->maxSize); } /** * 检查上传的文件后缀是否合法 * @param string $ext 后缀 */ private function checkExt($ext) { return emptyempty($this->config['exts']) ? true : in_array(strtolower($ext), $this->exts); } /** * 创建目录 * @param string $savepath 要创建的穆里 * @return boolean 创建状态,true-成功,false-失败 */ protected function mkdir($savepath){ if(is_dir($savepath)){ return true; } if(mkdir($savepath, 0777, true)){ return true; } else { $this->error = "目录创建失败"; return false; } } }
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Use case:

Header reference use App\ThinkClass\UploadClass;

$upload = new UploadClass(); $upload->exts=array('jpg','png'); $upload->maxSize=5*1024*1024; $upload->savePath='course/uid_6'; $file = $request->file('fileImg'); $aa = $upload->upload($file); dd($aa);
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