Rename each selected files differently using php - php

Question

My problem is when I select multiple files, it renames all the selected files to the same, but I want to rename each selected files a bit differently and insert into the MySQL and the local folder.
For example
First Selected File Would be:
1_$date_$rand_.png
Second Selected File Would be:
2_$date_$rand_.pnp
And so on...
I also tried with random number but it will rename each selected file to the same as well. I can't figure out how should I do it with loop.
My php code to rename a file and upload into database:
$rand = rand(0, 99999);
$date = date('Y_m_d-H_i_s-a', time());
$count = 0;
$path = "../../images/"; // Upload directory=
$filename = $date."_".$rand.'.';
foreach ($image as $f => $imgname) {
$ext = end((explode(".", $imgname)));
mysqli_query($conn,"INSERT INTO images(name)
VALUES ('$filename$ext')");
if(move_uploaded_file($_FILES["image"]["tmp_name"][$f], "$path/$filename$ext")) {
$count++; // Number of successfully uploaded files
}
}

Answer 1

Use file_exists() and a counter
$rand = rand(0, 99999);
$date = date('Y_m_d-H_i_s-a', time());
$count = 0;
$fileCounter = 0;
$path = "../../images/"; // Upload directory=
$filename = $date."_".$rand.'.';
foreach ($image as $f => $imgname) {
$ext = end((explode(".", $imgname)));
$fileCounter=1;
$fullFilename = "$filename$fileCounter$ext" ;
while(file_exists($path . '/'. $fullFilename)){
$fileCounter ++;
$filename = "$filename$fileCounter$ext" ;
}
mysqli_query($conn,"INSERT INTO images(name) VALUES ('$fullFilename')");
if(move_uploaded_file($_FILES["image"]["tmp_name"][$f],$path . '/'.$fullFilename )) {
$count++; // Number of successfully uploaded files
}
}