我要保存导致与循环进入

Question

我要保存导致了与此代码

$str = ''; 
for($i = 1; $i <= 10; $i++) { 
    $str .= $i;  
} 

$myfile = fopen("newfile.txt", "w") or die("Unable to open file!"); 
$txt = $str . "\n"; 
fwrite($myfile, $txt); 
fclose($myfile); 

进入循环，但结果是

12345678910 

我想要的结果就像是

1 
2 
3 
4 
5 
6 
7 
8 
9 
10 

然后我试着用这个脚本

$str = ''; 
for($i = 1; $i <= 10; $i++) { 
    $str .= $i . "<br>";  
} 

$myfile = fopen("newfile.txt", "w") or die("Unable to open file!"); 
$txt = $str . "\n"; 
fwrite($myfile, $txt); 
fclose($myfile); 

结果就像

1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>10<br> 

任何人都可以帮我解决这个脚本好吗？

Answer 1

你可能想简单地添加新行直接在Loop中获得你想要的东西：

<?php 
     $str = ''; 
     for($i = 1; $i <= 10; $i++) { 
      $str .= $i . PHP_EOL; //<== ADD A NEW LINE AT THE END OF EACH DIGIT 
     } 

     $myfile = fopen("newfile.txt", "w") or die("Unable to open file!"); 
     //$txt = $str . "\n"; //<== YOU WOULDN'T NEED THIS LINE ANYMORE 
     fwrite($myfile, $str); 
     fclose($myfile); 

Answer 2

你必须以这样的方式来使用新线

尝试：

$txt = $str.PHP_EOL; 

Answer 3

尝试添加\ r

$myfile = fopen("newfile.txt", "w") or die("Unable to open file!"); 
$txt = $str . "\r\n"; 
fwrite($myfile, $txt); 
fclose($myfile); 

Answer 4

您只能在文件中保存一个带有12345678910的变量。如果你用wordwrap保存每一行，它应该工作。就像这样：

$myfile = fopen("newfile.txt", "w") or die("Unable to open file!"); 

for($i = 1; $i <= 10; $i++) { 
    fwrite($myfile, $i . "\n";); 
} 

fclose($myfile);