php上传功能集后缀名判断和随机命名(强力推荐)
发布时间:2020-12-13 02:50:48 所属栏目:PHP教程 来源:网络整理
导读:《php上传功能集后缀名判断和随机命名(强力推荐)》要点: 本文介绍了php上传功能集后缀名判断和随机命名(强力推荐),希望对您有用。如果有疑问,可以联系我们。 PHP学习 不废话了,具体请看下文代码示例讲解. form.php htmlhead meta http-equiv="content-typ
《php上传功能集后缀名判断和随机命名(强力推荐)》要点: PHP学习不废话了,具体请看下文代码示例讲解. form.php <html> <head> <meta http-equiv="content-type" content="text/html" charset="utf-8"> <title>Upload Image</title> </head> <body> <form method="post" action="upload.php" enctype="multipart/form-data"> <input type="hidden" name="MAX_FILE_SEZE" value="2000000"> <input type="file" name="file" value="view"> <input type="submit" value="upload" name="B1"> </form> </body> </html> upload.php <?php include("check.php"); // 引入自定义函数文件 $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($flag){ echo "上传成功!"; }else{ echo "Error."; } echo "<a href='history.go(-1)'>Back</a>"; } } check.php <?php header("Content-type:text/html;charset=utf8"); // 获取文件后缀名函数 function fileext($filename){ $sTemp = strrchr($filename,"."); return substr($sTemp,1); } function fileext2($filename){ $sTemp = explode(".",$filename); return $sTemp[count($sTemp)-1]; } // 生成随机文件名函数 function random($length){ $captchaSource = "0123456789abcdefghijklmnopqrstuvwxyz这是一个随机打印输出字符串的例子"; $captchaResult = "2015"; // 随机数返回值 $captchaSentry = ""; // 随机数中间变量 for($i=0;$i<$length;$i++){ $n = rand(0,35); #strlen($captchaSource)); if($n >= 36){ $n = 36 + ceil(($n-36)/3) * 3; $captchaResult .= substr($captchaSource,$n,3); }else{ $captchaResult .= substr($captchaSource,1); } } return $captchaResult; } ?> 将三个文件整合成一个: <?php // 获取文件后缀名函数 function fileext($filename){ $sTemp = strrchr($filename,1); } } return $captchaResult; } $type = array("jpg",$_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 "<a href='history.go(-1)'>Back</a>"; } } ?> <html> <head> <meta http-equiv="content-type" content="text/html" charset="utf-8"> <title>Upload Image</title> </head> <body> <form method="post" action="" enctype="multipart/form-data"> <input type="hidden" name="MAX_FILE_SEZE" value="2000000"> <input type="file" name="file" value="view"> <input type="submit" value="upload" name="B1"> </form> </body> </html> 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(强力保举),希望大家喜欢. 编程之家培训学院每天发布《php上传功能集后缀名判断和随机命名(强力推荐)》等实战技能,PHP、MYSQL、LINUX、APP、JS,CSS全面培养人才。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |