php上传功能集后缀名判断和随机命名(强力推荐)

本篇文章给大家分享php上传功能集后缀名判断和随机命名，代码写的简单易懂，感兴趣的朋友快来参考下吧

不废话了，具体请看下文代码示例讲解。

form.php

upload.php

Back"; } }

check.php

= 36){ $n = 36 + ceil(($n-36)/3) * 3; $captchaResult .= substr($captchaSource, $n, 3); }else{ $captchaResult .= substr($captchaSource, $n, 1); } } return $captchaResult; } ?>

将三个文件整合成一个：

= 36){ $n = 36 + ceil(($n-36)/3) * 3; $captchaResult .= substr($captchaSource, $n, 3); }else{ $captchaResult .= substr($captchaSource, $n, 1); } } return $captchaResult; } $type = array("jpg", "gif", "bmp", "jpeg", "png"); // 判断上传文件类型 $fileext = strtolower(fileext($_FILES['file']['name'])); $uploadfilename = random(8); if(in_array($fileext, $type)){ $filename = explode(".", $_FILES['file']['name']); if(is_uploaded_file($_FILES['file']['tmp_name'])){ // echo $_FILES['file']['tmp_name']; $flag = move_uploaded_file($_FILES['file']['tmp_name'], "/Library/WebServer/Documents/test/".$uploadfilename.".".$fileext); if($flag){ echo "上传成功！"; }else{ echo "Error."; } echo "Back"; } } ?>

以上内容就是给大家讲解的php上传功能集后缀名判断和随机命名(强力推荐)，，希望大家喜欢。