How do I combine file rename and upload php programs? -

i new programming, , need php.

i can use these 2 php program upload files.(individually work well) can't figure out how combine them one, 1 new program can validate, rename, , post 2 pictures.

i program included retrieve username , email address logon session of customer , verify data the form.

i grately appreciate help.thanks

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these php working with

 //this php validates , posts file folder "file_upload"   <?php  $allowedexts = array("gif", "jpeg", "jpg", "png");  $temp = explode(".", $_files["file"]["name"]);  $extension = end($temp);   if ((($_files["file"]["type"] == "image/gif")  || ($_files["file"]["type"] == "image/jpeg")  || ($_files["file"]["type"] == "image/jpg")  || ($_files["file"]["type"] == "image/pjpeg")  || ($_files["file"]["type"] == "image/x-png")  || ($_files["file"]["type"] == "image/png"))  && ($_files["file"]["size"] < 100000)  && in_array($extension, $allowedexts)) { if ($_files["file"]["error"] > 0) { echo "return code: " . $_files["file"]["error"] . "<br>"; } else { //echo "upload: " . $_files["file"]["name"] . "<br>"; //echo "type: " . $_files["file"]["type"] . "<br>";   echo "size: " . ($_files["file"]["size"] / 1024) . " kb<br>"; //echo "temp file: " . $_files["file"]["tmp_name"] . "<br>"; if (file_exists("upload/" . $_files["file"]["name"])) {   echo $_files["file"]["name"] . " exists. "; } else {   move_uploaded_file($_files["file"]["tmp_name"],   "file_upload/" . $_files["file"]["name"]);   //echo "stored in: " . "file_upload/" . $_files["file"]["name"];  } }  } else { echo "invalid file"; } ?>    //these php works fine rename , post files separate folders  //when same user name manually entered in form    <?php   $destdir = 'rename_fotos/';   //can directory on server,    $renamedfilename = $_post['numbera']."-foto1";   //keep same file extension if uploaded file has  $renamedfilename .= ($pos = strrpos($_files['file']['name'], '.')) === false ? '' :    substr($_files['file']['name'], $pos);   move_uploaded_file($_files["file"]["tmp_name"], $destdir . directory_separator .    $renamedfilename);   echo "foto file uploaded <b>(code need upgrade!)</b>";  ?>    <?php   $destdir = 'rename_fotos2/';   //can directory on server,`     $renamedfilename = $_post['number']."-foto2";    //keep same file extension if uploaded file has   $renamedfilename .= ($pos = strrpos($_files['file2']['name'], '.')) === false ? '' :      substr($_files['file2']['name'], $pos);    move_uploaded_file($_files["file2"]["tmp_name"], $destdir . directory_separator .      $renamedfilename);    echo "foto file uploaded <b>(code need upgrade!)</b>";   ?>  

try start minus logic. maybe looking @ can work better. wan't do? it's so....

if (is_valid_upload_image($_files['file']) && is_valid_number($_post['number'])) {     $moved_file = move_to_definetely_local($_files['file']);     rename_file_with_postname($moved_file, $post['number']); } 

all functions/methods must created now, logic in head, can work on each more efficiently.