将同一文件多次复制到其他文件夹[重复]

Question

This question already has an answer here:

• Rename a file if already exists - php upload system 2 answers

i using this script to copying files to other folder when i clicked submit button

<?php
if (isset($_POST['upload']) && isset($_POST['datae'])) {
copy('../print/'.$_POST['datae'], '../Upload/'.$_POST['datae']);
echo "<meta http-equiv='refresh' content='1'>";
}
?>

and now im wondering what if i choose same filename and submitted twice or more. normally the filename i've already choose will copy and overwrite the same file that already stored in there.

but what i want is whenever i submitted twice or more the file that already in destination folder, it will not replace or overwrite but it will duplicating same file and just different in file name like

//example in my folder
img_7878.JPG
img_7878_copy1.JPG
img_7878_copy2.JPG

maybe i could get help from here.

</div>

Answer 1

You should split the filename on the dot to get the extension seperately and then you can use a while loop to change the targetname until no file for the targetname is found.

Next to that, don't do this: echo "<meta http-equiv='refresh' content='1'>"; Use Location.reload(); https://developer.mozilla.org/en-US/docs/Web/API/Location/reload

    if (isset($_POST['upload']) && isset($_POST['datae'])) {
        $exp = explode('.', $_POST['datae']);
        $targetName = '../Upload/'.$exp[0];
        $ext = $exp[1];
        $target = $targetName .".". $ext;
        $count = 0;
        while (file_exists($target)) {
            $target = $targetName . "_copy". $count .".". $ext;
            $count++;
        }
        copy('../print/'.$_POST['datae'], $target);
        echo "<meta http-equiv='refresh' content='1'>";
    }