PHP foreach爆炸

Question

我是PHP的新手，並試圖找出爲什麼後第一行我有'_'在輸出的開始？

$myFile = fopen("sample.txt", "r"); 

while($strBuffer = fgets($myFile, 180)) { 
$strExplode = explode(" ", $strBuffer); 

foreach ($strExplode as $value) { 
    echo $value . "_"; 
} 

輸出：

This_is_the_first_test_line. 
_This_is_the_second_test_line. 
_This_is_the_third_test_line._ 

編輯：我現在相信，在數組「行」的最後一個元素是存儲換行符..使其打印_在新行

Answer 1

試試這個

$myFile = fopen("sample.txt", "r"); 

while($strBuffer = fgets($myFile)) { 
    $temp= str_replace(" ","_", $strBuffer); 
    echo $temp.'<br>'; 
} 

如果你想使用一個數組 試試這個

$myFile = fopen("sample.txt", "r"); 

while($strBuffer = fgets($myFile)) { 
    $strExplode = explode(" ", $strBuffer); 

     foreach ($strExplode as $value) { 
     if($value>"") 
     echo $value . "_"; 
    }