Random avatar PHP version_PHP tutorial

1.  31字节 PHP 随机显示头像 




2.

$url='pic';
//图片地址，用相对路径

$files=array();
if ($handle=opendir("$url")) {
while(false !== ($file = readdir($handle))) { 
if ($file != "." && $file != "..") { 
if(substr($file,-3)=='gif' 
 substr($file,-3)=='jpg') $files[count($files)] = $file;
}
} 
}
closedir($handle); 

$random=rand(0,count($files)-1);
if(substr($files[$random],-3)=='gif') header("Content-type: image/gif");
elseif(substr($files[$random],-3)=='jpg') header("Content-type: image/jpeg");
readfile("$url/$files[$random]");

?>

http://www.bkjia.com/PHPjc/314683.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/314683.htmlTechArticle1.31字节PHP随机显示头像 ?readfile(rand(0,5).'.jpg');? 2. ?php $url='pic'; //图片地址，用相对路径 $files=array(); if($handle=opendir("$url")){ while(false!==($file...