Mudar o nome do arquivo após o Upload

Olá

Tenho um script de upload e crop de imagem. entretanto, não consigo adapta-lo para fazer um uploader de um arquivo e posteriormente renomear-lo para a pasta.

Segue o código.

<?php
include_once("../../includes/connect.php");

date_default_timezone_set('America/Sao_Paulo');
 $date = date("d/m/Y h:i");

$small = "../media/images/thumbs/small/";

ini_set("memory_limit", "200000000");

// upload the file

if ((isset($_POST["submitted_form"])) && ($_POST["submitted_form"] == "image_upload_form")) {

	// file needs to be jpg,gif,bmp,x-png and 4 MB max
	if (($_FILES["image_upload_box"]["type"] == "image/jpeg" || $_FILES["image_upload_box"]["type"] == "image/pjpeg" || $_FILES["image_upload_box"]["type"] == "image/gif" || $_FILES["image_upload_box"]["type"] == "image/x-png") && ($_FILES["image_upload_box"]["size"] < 4000000))
	{

 $captureId = $_POST["idpost"];

 // some settings
 $max_upload_width = 250;
 $max_upload_height = 250;

 // if uploaded image was JPG/JPEG
 if($_FILES["image_upload_box"]["type"] == "image/jpeg" || $_FILES["image_upload_box"]["type"] == "image/pjpeg"){
 $image_source = imagecreatefromjpeg($_FILES["image_upload_box"]["tmp_name"]);
 }
 // if uploaded image was GIF
 if($_FILES["image_upload_box"]["type"] == "image/gif"){
 $image_source = imagecreatefromgif($_FILES["image_upload_box"]["tmp_name"]);
 }
 // BMP doesn't seem to be supported so remove it form above image type test (reject bmps)
 // if uploaded image was BMP
 if($_FILES["image_upload_box"]["type"] == "image/bmp"){
 $image_source = imagecreatefromwbmp($_FILES["image_upload_box"]["tmp_name"]);
 }
 // if uploaded image was PNG
 if($_FILES["image_upload_box"]["type"] == "image/x-png"){
 $image_source = imagecreatefrompng($_FILES["image_upload_box"]["tmp_name"]);
 }

 $remote_file = "../../users/".$_FILES["image_upload_box"]["name"];
 imagejpeg($image_source,$remote_file,70);
 chmod($remote_file,0644);

 // get width and height of original image
 list($image_width, $image_height) = getimagesize($remote_file);

 if($image_width>$max_upload_width || $image_height >$max_upload_height){
 $proportions = $image_width/$image_height;

 if($image_width>$image_height){
 $new_width = $max_upload_width;
 $new_height = round($max_upload_width/$proportions);
 }
 else{
 $new_height = $max_upload_height;
 $new_width = round($max_upload_height*$proportions);
 }

 $new_image = imagecreatetruecolor($new_width , $new_height);
 $image_source = imagecreatefromjpeg($remote_file);

 imagecopyresampled($new_image, $image_source, 0, 0, 0, 0, $new_width, $new_height, $image_width, $image_height);
 imagejpeg($new_image,$remote_file,70);

 imagedestroy($new_image);
 }

 imagedestroy($new_image);

	$squery_pesquise=$conexaoDB->query("SELECT * FROM editores WHERE id_user='$captureId'");
	$squery_cout=$squery_pesquise->fetch_assoc();
	$veri = $squery_pesquise->num_rows;
	$photoAtual = $squery_cout['perfil'];

 $file = $_FILES["image_upload_box"]["name"];

	if($photoAtual){
 //Apagar arquivo da pasta do servidor
	$patch_home_small ='../../users/';
	$arquivo_small = $patch_home_small.$photoAtual;

 unlink($arquivo_small);

	}

	if($veri >= 1){
 $conexaoDB->query("UPDATE editores SET perfil='$file' WHERE id_user='$captureId'");

	}else{
 $post = $conexaoDB->query("INSERT INTO editores VALUES ('','".$captureId."','','',".$file."','','','')");
	}

	echo "<img src='../users/".$file."' style=\"width: 100%;\" class='uploadphotoClass circle' >";
	}
	else{
 echo "405 - Erro no Upload";
	}
}

/*	if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST" and isset($_FILES["uploadpri"])){

	$captureId = $_POST["idpost"];
	$name = $_FILES['uploadpri']['name'];
	$size = $_FILES['uploadpri']['size'];

	//Pesquisar
	$squery_pesquise=$conexaoDB->query("SELECT * FROM postagens WHERE id_post='$captureId'");
	$squery_cout=$squery_pesquise->fetch_assoc();
	$veri = $squery_pesquise->num_rows;
	$photoAtual = $squery_cout['imagem'];

	if(strlen($name)){
 list($txt, $ext) = explode(".", $name);
	if(in_array($ext,$valid_formats)){
 if($size<(1024*1024)){

 $tmp = $_FILES['uploadpri']['tmp_name'];
 $typeIMG = $_FILES['uploadpri']['type'];

 $largura_small = 481;
 $altura_small = 321;

 $largura_medium = 381;
 $altura_medium = 221;

 if($typeIMG == 'image/jpeg'){
 $foto = imagecreatefromjpeg($tmp);
 }elseif($typeIMG == 'image/png'){
 $foto = imagecreatefrompng($tmp);
 }
 $x = imagesx($foto);
 $y = imagesy($foto);

 $novaimg_small = imagecreatetruecolor($largura_small, $altura_small);
 imagecopyresampled($novaimg_small, $foto,0,0,0,0,$largura_small, $altura_small, $x, $y);

 $novaimg_medium = imagecreatetruecolor($largura_medium, $altura_medium);
 imagecopyresampled($novaimg_medium, $foto,0,0,0,0,$largura_medium, $altura_small, $x, $y);

//Muda o nome da imagem, colocando microsegundos e registrando largura e altura no nome da imagem. substitue espaços em branco e traços baixos;
	$newimager = time().substr(str_replace(" ", "_", $x.''.$y.'.'.'img'.'-thumd'), 5).".".$ext;

 //Caso a imagem tenha um type jpeg
 if($typeIMG == 'image/jpeg'){
 //move a imagem já cortada para a pasta
 imagejpeg($novaimg_small, $small.$newimager,70);
 imagedestroy($novaimg_small);
 imagedestroy($foto);
 //medium
 imagejpeg($novaimg_medium, $medium.$newimager,70);
 imagedestroy($novaimg_medium);

 //ou png
 }elseif($typeIMG == 'image/png'){
 //move a imagem já cortada para a pasta
 imagepng($novaimg_small, $small.$newimager,70);
 imagedestroy($novaimg_small);
 imagedestroy($foto);
 //medium
 imagepng($novaimg_medium, $medium.$newimager,70);
 imagedestroy($novaimg_medium);

 }

 if($photoAtual>=1){
 //Apagar arquivo da pasta do servidor
	$patch_home_small ='../../media/images/thumbs/small/';
	$arquivo_small = $patch_home_small.$photoAtual;

	$patch_home_medium ='../../media/images/thumbs/medium/';
	$arquivo_medium = $patch_home_medium.$photoAtual;

 if (!unlink($arquivo_small)){}
 if(!unlink($arquivo_medium)){}

 }
	if($veri >= 1){
 $conexaoDB->query("UPDATE postagens SET imagem='$newimager' WHERE id_post='$captureId'");
	}else{
 $post = $conexaoDB->query("INSERT INTO postagens VALUES ('','".$captureId."','','rascunho','','".$date."','','','','','','".$newimager."','NO','','','','','')");
	}
	echo "<div class=\"boxer-text-into\">
 <button class=\" btn-flat blue-text btn white waves-effect tooltipped modal-trigger\" data-position=\"bottom\" data-delay=\"10\" data-tooltip=\"Editar\" type=\"button\" data-target=\"modal4\">
 <i class=\"material-icons\">system_update_alt</i>
 </button></div><img src='../media/images/thumbs/small/".$newimager."' class='uploadphotoClass' >";
	}else
 echo "Máximo 1MB";
	}else
 echo "Aceitos JPG/PNG";
	}else
 echo "Selecione uma Imagem";
	exit;
	}*/
?>