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本文实例为大家分享了PHP AjaxForm提交图片上传并显示图片的具体代码,供大家参考,具体内容如下
PHP dofile.php 文件上传源码
<"upload/"; $file_allow_ext='gif|jpg|jpeg|png|gif|zip|rar|ppt|xls|pdf|pptx|xlsx|docx'; $file_allow_size = 5*1024*1024; if($_POST['submit']=="上传"){ if(is_uploaded_file($_FILES['file']['tmp_name'])){ $file_name = $_FILES['file']['name']; $file_error = $_FILES['file']['error']; $file_type = $_FILES['file']['type']; $file_tmp_name = $_FILES['file']['tmp_name']; $file_size = $_FILES['file']['size']; $file_ext = substr($file_name, strrpos($file_name, '.')+1); switch($file_error){ case 0: $data['status'] = 0; $data['msg'] = "文件上传成功!"; break; case 1: $data['status'] = 1; $data['msg'] = "文件上传失败,文件大小".$file_size."超过限制,允许上传大小".sizeFormat($file_allow_size)."!"; break; case 3: $data['status'] = 1; $data['msg'] = "上传失败,文件只有部份上传!"; break; case 4: $data['status'] = 1; $data['msg'] = "上传失败,文件没有被上传!"; break; case 5: $data['status'] = 1; $data['msg'] = "文件上传失败,文件大小为0!"; break; } if(stripos($file_allow_ext,$file_ext)===false){ $data['status'] = 1; $data['msg'] = "该文件扩展名不允许上传"; } if($file_size>$file_allow_size){ $data['status'] = 1; $data['msg'] = "文件大小超过限制,只能上传".sizeFormat($file_allow_size)."的文件!"; } if($data['status']==1){ $data['status'] = 1; $data['msg'] = $data['msg']; exit(json_encode($data)); } if($data['status']==0){ if(file_exists($file_upload)){ $file_new_name = date("YmdHis").'_'.rand(10000,99999).'.'.$file_ext; $file_save_path = $file_upload.$file_new_name; $data['status'] = 0; $data['url'] = $file_save_path; move_uploaded_file($file_tmp_name,$file_save_path); exit(json_encode($data)); }else{ exit(json_encode($data)); } } } } function sizeFormat($size) { $sizeStr=''; if($size<1024) { return $size."bytes"; } else if($size<(1024*1024)) { $size=round($size/1024,1); return $size."KB"; } else if($size<(1024*1024*1024)) { $size=round($size/(1024*1024),1); return $size."MB"; } else { $size=round($size/(1024*1024*1024),1); return $size."GB"; } } "htmlcode"><script type="text/javascript" src="/UploadFiles/2021-04-02/jquery-1.9.1.min.js">以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
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