php讀寫文件不保存領先的空白

Question

我有一個文件大約2000行，我正在處理。這是一個簡單的閱讀，取代文字和回寫，然而，領先的空白不被保存。

任何想法？

<?php 
    $access = fopen("oldfile.txt", "r"); 
    $y=9999; 
    for ($i=1; $i<=$y; $i++) 
     { 
     $line = trim(fgets($access)); 
     $loc = strpos($line, "findtext", 0); 
     if ($loc) 
      { 
      $loc = $loc +6; 
      $end = strpos($line, "endtext", 0); 
      $pull = substr($line, $loc, ($end-$loc)); 

      $loc = strpos($line, 'foundthis', 0); 
      $end = $loc +12; 

      $newline = substr($line, 0, $loc).'foundthis'.$pull.'" '. 
    substr($line, $end); 

      } 
     else 
      { $newline = $line; } 

     file_put_contents("newfile.txt", $newline."\r\n", FILE_APPEND); 

     } 
    fclose($access); 

?> 

oldfile.txt 
    labelinput "Adhesives" name="MyName"Adhesiveslabel 
    labelinput "Cord, Yarn & Material" name="MyName"Cord, Yarn & 
     labelinput "Corners" name="MyName"Cornerslabel 
      labelinput "Ink & Ink Pads" name="MyName"Ink & Ink Padslabel 

newfile.txt 
labelinput "Adhesives" name="MyName"Adhesiveslabel 
labelinput "Cord, Yarn & Material" name="MyName"Cord, Yarn & Materiallabel 
labelinput "Corners" name="MyName"Cornerslabel 
labelinput "Ink & Ink Pads" name="MyName"Ink & Ink Padslabel 

Answer 1

如果你想空白，因爲它是修改下面一行

$line = trim(fgets($access)); 

到

$line = fgets($access); 

這應該解決您的問題。