从本地主机更新远程服务器文件夹权限

Question

<?php
$source_dir = "pimg";
$move1 = "1.png";
$target1 = "apple/boy/cat/d'!og";
$move2 = "2.png";
$target2 = "a/b";
if($moved = move_image($move1,$source_dir,$target1) ) {
    echo "<br> moved image = ".$moved;
}
if($moved = move_image($move2,$source_dir,$target2) ) {
    echo "<br> moved image = ".$moved;
}
function move_image($image, $source_dir, $target_dir) {
    $target_dir_arr = explode('/',$target_dir);
    $base_dir = $_SERVER['DOCUMENT_ROOT'];
    $path = $base_dir;
    foreach($target_dir_arr as $value) {
        if(file_exists($path.'/'.$value)) {
            $path.='/'.$value;
            //echo "<br>".$path." exist";
        }
        else {
            //echo "<br>".$path." does not exist. ";
            if(mkdir($path.'/'.$value)) {
                //echo " $value created under $path ";
                $path.='/'.$value;
            }
            else {
                echo " $value can not create under $path ";
                return;
            }            
        }
    }
    // move image ///////////////////////////////////
    if(!empty($path)) {
        if(file_exists($source_dir.'/'.$image)) {
            if(copy($source_dir.'/'.$image, $path.'/'.$image)) {
                //echo "<br>$image moved under $path";  
                unlink($source_dir.'/'.$image);
                return $path.'/'.$image;
            }
            else {
                echo "<br>$image move failed under $path";  
                return; 
            }
        }
        else {
            echo "<br> source file $source_dir/$image does not exists. ";               
            return ;
        }
    }   
}
?>

Answer 1

为什么不能使用 chmod()？

<?php
// Read and write for owner, nothing for everybody else
chmod("/somedir/somefile", 0600);
// Read and write for owner, read for everybody else
chmod("/somedir/somefile", 0644);
// Everything for owner, read and execute for others
chmod("/somedir/somefile", 0755);
// Everything for owner, read and execute for owner's group
chmod("/somedir/somefile", 0750);
?>