PHP文件上传函数封装 作业标题：PHP文件上传函数封装 作业内容：根据需求封装文件上传限制函数: 1. 文件大小不超过5M 2. 后缀只能是[‘jpg’,’jpeg’,’png’,’wbmp’,’gif’] 3. 检查图片
PHP文件上传函数封装
作业标题：PHP文件上传函数封装
作业内容：根据需求封装文件上传限制函数: 1. 文件大小不超过5M 2. 后缀只能是[‘jpg’,’jpeg’,’png’,’wbmp’,’gif’] 3. 检查图片合法性 4.为每一张图片处理散列名称 5. 目标目录不存在,创建目录 6.设置错误日志接收系统错误,而不是将错误显示到页面上
首页demo1.php代码
<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>文件上传</title></head><body><!-- application/x-www-urlencoded 不合适二进制数据或者包含ASCII字符的传输 --><form action="upload3.php" method="post" enctype="multipart/form-data"><!-- <fieldset><legend>单文件上传</legend><label for="my_file"></label><input type="file" name="my_file" id="my_file"><button>上传</button></fieldset> --><fieldset><legend>多文件上传</legend><label for="my_file"></label><input type="file" name="my_file[]" id="my_file" multiple><button>上传</button></fieldset></form></body></html>
- upload代码
<?phpini_set('display_errors','Off'); //页面不现实任何错误ini_set('error_log','./error.log');require 'common1.php';$files = upload($_FILES['my_file']);foreach ($files as $fileInfo){$res = uploadFile($fileInfo);echo "<p>{$res['info']}</p>";echo "<img style='border-radius:50%;width:100px';height:50% src='{$res['fileRealPath']}'>";$uploadFiles[] = $res['fileRealPath'];}printf('<pre>%s</pre>',print_r($uploadFiles,true));echo json_encode($uploadFiles);
- 封装函数common.php
批改老师：
<?phpini_set('display_errors','Off'); //页面不现实任何错误ini_set('error_log','./error.log');//文件上传函数function uploadFile($fileInfo,$uploadPath='./storage',$flag=true,$allowExt=['jpg','png','wbmp','gif','jpeg'],$maxSize=5242880){if($fileInfo['error'] == 0){// 后端设置文件的类型$arr = explode('.',$fileInfo['name']);$ext = end($arr);$prefix = array_shift($arr);if(!in_array($ext,$allowExt)){$res['error']='非法的文件类型';}if($fileInfo['size'] > $maxSize){$res['error']='文件大小超过限制的最大值';}if($flag){//检测图片是否合法if(!getimageSize($fileInfo['tmp_name'])){$res['error']='不是真实图片,get out~';}}if(!is_uploaded_file($fileInfo['tmp_name'])){$res['error'] ='上传方式错误:请使用http post方式上传';}if(!empty($res)) return;// -----------------------------------------------------------------------// copy(),move_uploaded_file()可以将文件从临时目录移动到指定路径if(!file_exists($uploadPath)){mkdir($uploadPath,0770,true);chmod($uploadPath,0770);}// 根据$prefix time() 生成唯一图片地址$des = $uploadPath.'/'.md5($prefix.time()).'.'.$ext;$result = move_uploaded_file($fileInfo['tmp_name'],$des);if(!$result){$res['error'] = '文件移动失败';}else{$res['info'] = $fileInfo['name'] . '上传成功';$res['fileRealPath'] = $des;}return $res;}else{switch($error) :case 1:$res['error'] = '文件超过`php.ini`中`upload_max_filesize`值<br>';break;case 2:$res['error'] = '文件大小超过表单中`MAX_FILE_SIZE`指定的值<br>';break;case 3:$res['error'] = '文件只有部分被上传<br>';break;case 4:$res['error'] = '没有文件被上传<br>';break;case 6:$res['error'] = '找不到临时文件夹<br>';break;case 6:$res['error'] = '文件写入失败<br>';break;default:$res['error'] = '系统错误<br>';break;endswitch;return $res;}}function upload($fileInfo){foreach($fileInfo as $k=>$v){foreach($v as $kk=>$vv){if($kk == $kk ){$files[$kk][$k] = $vv;}}}return $files;}
PHPzhong批改状态：合格
老师批语：在作业内容后面添上实例结果会更加完美