php读取内存数据，文件数据

<?php 

    set_time_limit(0);

$file_name = “order_sn.txt”;

$file = “taobao.txt”;

$fp = fopen($file_name, “r+”);

$f = fopen($file, “r+”);

$array = array();

while(!feof($fp)){

$buffer = fgets($fp);

$t = split(“,”, $buffer);

$t[0] = trim($t[0]);

$t[1] = trim($t[1]);

$array[$t[0]] = $t[1];

}

fclose($fp);

//$r = fopen(“result.txt”, “a+”);

//echo “$fp<br>”;

//rewind($fp);

//$contensts = fread($fp, 100);

echo “订单号”.”<br>”;

//fwrite($r, “订单号”);

while(!feof($f)){

$b = fgets($f);

$b = trim($b);

$flag = false ;

foreach ($array as $key=>$value){

if($key == $b){

echo $value.”<br>”;

$flag = true;

}

}

if($flag == false){

echo “—————-“.$b.”<br>”;

}

//  echo $b;echo “<br>”;

//  $fp = fopen($file_name, “r+”);

//  while (!feof($fp)){

//  $buffer = fgets($fp);

//  $t = split(“,”, $buffer);

//  $t[0] = trim($t[0]);

// //  echo $b.”   “.$t[0].”  “.($b == $t[0]?1:0).”<br>”;

//  if($b == $t[0]){

// //  $t[1] = $t[1];

// //  fwrite($r, $t[1]);

//  $t[1] = $t[1].”<br>”;

//  echo $t[1];

//  break;

//  }

//  }

//  fclose($fp);

}

fclose($f);

//  fclose($r);

echo “success write in”;

//  echo $contensts ;

?>