PHP根据时间设置问候语

“PHP根据时间设置问候语”的5个回复

1. 请教个问题.以下是一个PHP文件全部代码
   ********************************
   <?php
   function RandomFile($folder='', $extensions='.*'){

   // fix path:
   $folder = trim($folder);
   $folder = ($folder == '') ? './' : $folder;

   // check folder:
   if (!is_dir($folder)){ die('invalid folder given!'); }

   // create files array
   $files = array();

   // open directory
   if ($dir = @opendir($folder)){

   // go trough all files:
   while($file = readdir($dir)){

   if (!preg_match('/^\.+$/', $file) and
   preg_match('/\.('.$extensions.')$/', $file)){

   // feed the array:
   $files[] = $file;
   }
   }
   // close directory
   closedir($dir);
   }
   else {
   die('Could not open the folder "'.$folder.'"');
   }

   if (count($files) == 0){
   die('No files where found :-(');
   }

   // seed random function:
   mt_srand((double)microtime()*1000000);

   // get an random index:
   $rand = mt_rand(0, count($files)-1);

   // check again:
   if (!isset($files[$rand])){
   die('Array index was not found! very strange!');
   }

   // return the random file:
   return $folder . $files[$rand];

   }

   //用法演示：
   // "jpg|png|gif" matches all files with these extensions
   //print RandomFile('test_images/','jpg|png|gif');
   // returns test_07.gif

   // ".*" matches all extensions (all files)
   //print RandomFile('test_files/','.*');
   // returns foobar_1.zip

   // "[0-9]+" matches all extensions that just
   // contain numbers (like backup.1, backup.2)
   //print RandomFile('test_files/','[0-9]+');
   // returns backup.7

   //随机从file.txt文本文件中读取一行出来
   $file = RandomFile('so/data/sitemap/','.*'); //文件位置;
   //是否存在
   if(file_exists($file)){
   $data = file($file); //将文件存放在一个数组中;
   $num = count($data); //条数;
   $id = mt_rand(0,$num-1); //随机数字;
   $cn_text = chop($data[$id]); //显示第几行数据,并去除空格;
   }

   function characet($cn_text){
   if( !empty($cn_text) ){
   $fileType = mb_detect_encoding($cn_text , array('UTF-8','GBK','LATIN1','BIG5')) ;
   if( $fileType != 'UTF-8'){
   $data = mb_convert_encoding($cn_text ,'utf-8' , $fileType);
   }
   }
   return $cn_text;
   }

   //header ('Content-Type:text/html;charset=utf-8');
   //echo ($cn_text);
   //echo 'document.write(“‘. $cn_text .'”);’;
   //echo “document.getElementById(‘”.$keywords.”‘).innerHTML='”.$cn_text.”‘;”;

   *************************************
   请问在html文件中如何调用这个文件随机从txt当中读取的字符串?

   回复

   1. 方式很多，常见的是iframe

      回复
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3. 非常好，不错，吸纳了。

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