Question

所以，我發現這個代碼，它可以讓被寫入特定行

function SetSiteName(){ 
     global $session, $database, $form; 
    $filepathname = "include/classes/constants.php"; 
    $target = 'sitename'; 
    $newline = 'define("sitename", "Testing.");'; 

    $stats = file($filepathname, FILE_IGNORE_NEW_LINES); 
    $offset = array_search($target,$stats) +32; 
    array_splice($stats, $offset, 0, $newline); 
    file_put_contents($filepathname, join("\n", $stats)); 
    header("Location: ".$session->referrer); 
    } 

但它不會覆蓋什麼在該行預計要到下一行，並把數據..我想使它覆蓋目前在該行上的內容？

有什麼想法？

Answer 1

您可以用此代碼覆蓋文件的一行。

$filename = "file.txt"; 
$content = file_get_contents($filename); 
$lines_array = explode(PHP_EOL, $content); 

//overwrite the line that you want. 
$lines_array[5] = "New text at line 6!"; 

file_put_contents($filename, implode(PHP_EOL, $lines_array));