<?php 
/*//遍歷get值;
while( list( $key,$value)  =  each($_GET)){  
  echo  $key ."=". $value ."<br/>";  
}
*/
/*//遍歷post值;
foreach ($_POST as $key => $word) {
  echo $key ."=". $word;
}
*/
/*//遍歷post值;
while( list($name,$value) = each($_POST) ){
  echo  $name ."=". $value ."<br/>";  
}
*/

/*
function getpost(){
   //print_r($_POST);
   while(  list($a , $b) = each ( $_POST ) )
   echo $a ."=". $b;
}
getpost();
*/

function deleteMessageId( $fname , $id ){
	//刪除指定行號的留言;
  $fa= file($fname);$fl = array();
  $a=0;  
	for( $i=0; $i<count($fa); $i++ ){
		//讀取獲得數組,去掉指定行，重新排序賦值給新數組；
   if($i != $id)
    {
     	$fl[$a] = $fa[$i];//;explode("\t",$fa[$i]);
     	$a++;
    }
  }	

  if ($fd = @fopen($fname, "w+")) { 
	flock($fd, LOCK_EX); //鎖定文本
	fseek($fd, 0, SEEK_END); 
	
	//將新數組寫入文本;//	

	for($l=0;$l<count($fl);$l++){
		fwrite($fd,$fl[$l]);//逐行寫入;
  }		
  //釋放鎖定
 
 	flock($fd, LOCK_UN); 
	fclose($fd);

  }
  return true;
}
?>