Simple Adding and Inserting image with PHP

These are the codes in our Administration area, credits to sourcecodester.com.

-> please make sure you have a connection with the database:

<?php

error_reporting(0);

session_start();

include("dbconnect.php");

$action = $_REQUEST['action']; 

?>

1. Let's start with ADDING along with INSERTING IMAGE form:

elseif($action=="YOURACTION"){

echo "<CENTER><form action='admin.php' method='post' enctype='multipart/form-data'>";

echo "<table>";

echo "<tr><td colspan=2 align=center>  Add Profile </td></tr>";

echo "<tr><td>  Firstname: </td><td><input type=text name=denfname size=30></td></tr>";

echo "<tr><td>  Lastname: </td><td><input type=text name=denlname size=30></td></tr>";

echo "<tr><td>  Address: </td><td><input type=text name=denaddress size=30></td></tr>";

echo "<tr><td> Gender:<td><select name=dengen><option name=dengen> Male";

echo "<option name=dengen> Female"; echo "</select></td>";

echo "<tr><td> Add picture: </td><td><input type=file name=logo size=20></td></tr>";

echo "<tr><td align=center colspan=2><input type=submit name=submit value='add dentist'></td></tr>";

echo "<input type=hidden name=action value=YOUR_ACTION>";

echo "</form>";

echo "</table>";

}

*then your query for YOUR_ACTION

elseif($action=="YOUR_ACTION"){

if ($_FILES['logo']['name'] != "") { 

$imageInfo = getimagesize($_FILES['logo']['tmp_name']); // get image size

$width = $imageInfo[0]; // image width

$height = $imageInfo[1];  // image height

if($height > 2000 || $width > 2000){

echo "<script> alert('Image is to big! Try to resize the picture!') </script>";

exit;

} // check size 

$newimg1 = date("YmdHis").".jpg";  // set name for new image

$newimg2 = date("YmdHis").".pdf"; // set name for pdf if is necesary

if(stristr($_SERVER['OS'],"win")){

$path = "prodimg/";

} // determin path of image folder

elseif(stristr($_SERVER['OS'],"linux")){

$path = str_replace("admin.php","",$_SERVER['SCRIPT_FILENAME']) . "prodimg/";

} 

else {

$path = "prodimg/";

}

move_uploaded_file ( $_FILES['logo']['tmp_name'], $path . $newimg1  );

}  // copy image in image folder

else{

$newimg1="pc.gif"; 

} // if is not posible than set image name as pc.gif

$denfname = $_POST['denfname'];

$denlname = $_POST['denlname'];

$denaddress = $_POST['denaddress'];

$dengen = $_POST['dengen'];

$res2 = mysql_query("insert into dentists(denfname,denlname,denaddress,dengen,denpicture) 

values('$denfname','$denlname','$denaddress','$dengen','$newimg1')");

echo "<script>location.replace('admin.php?action=showalldentists')</script>";

}