Simpel billedupload med eksempel og fuld url

du kan kigge lidt på disse funktioner

// image_resize()
function image_resize($src,$dest,$maxWidth,$maxHeight,$quality=100) {
  if (file_exists($src)  && isset($dest)) {
      // path info
      $destInfo  = pathInfo($dest);
     
      // image src size
      $srcSize  = getImageSize($src);
     
      // image dest size $destSize[0] = width, $destSize[1] = height
      $srcRatio  = $srcSize[0]/$srcSize[1]; // width/height ratio
      $destRatio = $maxWidth/$maxHeight;
      if ($destRatio > $srcRatio) {
          $destSize[1] = $maxHeight;
          $destSize[0] = $maxHeight*$srcRatio;
      }
      else {
          $destSize[0] = $maxWidth;
          $destSize[1] = $maxWidth/$srcRatio;
      }
     
      // path rectification
      if ($destInfo['extension'] == "gif") {
          $dest = substr_replace($dest, 'jpg', -3);
      }
     
      // true color image, with anti-aliasing
      $destImage = imageCreateTrueColor($destSize[0],$destSize[1]);
     
      // src image
      switch ($srcSize[2]) {
          case 1: //GIF
          $srcImage = imageCreateFromGif($src);
          break;
         
          case 2: //JPEG
          $srcImage = imageCreateFromJpeg($src);
          break;
         
          case 3: //PNG
          $srcImage = imageCreateFromPng($src);
          break;
         
          default:
          return false;
          break;
      }
     
      // resampling
      imageCopyResampled($destImage, $srcImage, 0, 0, 0, 0,$destSize[0],$destSize[1],$srcSize[0],$srcSize[1]);
     
      // generating image
      switch ($srcSize[2]) {
          case 1:
          case 2:
          imageJpeg($destImage,$dest,$quality);
          break;
         
          case 3:
          imagePng($destImage,$dest);
          break;
      }
      return true;
  }
  else {
      return false;
  }
} // END af image_resize()

// Upload function
function upload_pic($src, $src_t, $src_name, $dest, $overwrite='false') {
   
    $filetypes = array("image/gif", "image/pjpeg", "image/png");

    $thumbdest = "$dest/thumb/$src_name";
   
    $dest = "$dest/$src_name";

    if (in_array("$src_t", $filetypes)) {
   
        if ($overwrite == "true") {
       
            if (file_exists($dest)) {
                unlink($dest);
            }
            move_uploaded_file($src, $dest);
            image_resize($dest,$dest,600,1000,100);
           
            if (file_exists($thumbdest)) {
                unlink($thumbdest);
            }
            copy($dest, $thumbdest);
            image_resize($thumbdest,$thumbdest,100,100,100);
            if ($src_t == "image/gif") {
                unlink($thumbdest);
            }
           
            return true;
           
        } else {
            if (!file_exists($dest) || !file_exists($thumbdest)) {
           
                move_uploaded_file($src, $dest);
                image_resize($dest,$dest,600,1000,100);
               
                copy($dest, $thumbdest);
                image_resize($thumbdest,$thumbdest,100,100,100);
               
                return true;
               
            } else {
                die("Filen eksistere allerede omdøb den venligst eller vælg overskriv <b>\"".$src_name."\"</b><br><a href=\"java script:history.back(-1)\">Tilbage</a>");
            }
           
        }
    } else {
        return false;
        die("Filen er ikke et gyldigt billedeformat <b>\"".$src_name."\"</b>");
    }
   
} // END af upload_pic()

// upload_pic($pic, $pic_type, $pic_name, "images/new", "true")

Du kunne også lave upload til en database i stil med dette:

<?php
//http://www.eksperten.dk/spm/680819

require("./connect.php");

function resize( $filename, $newfilename, $maxw, $maxh )
{
    $result = false;
    $srcim = imagecreatefromjpeg( $filename );
    $ow = imagesx( $srcim );
    $oh = imagesy( $srcim );
    $wscale = $maxw / $ow;
    $hscale = $maxh / $oh;
    $scale = ( $hscale < $wscale ? $hscale : $wscale );
    $nw = round( $ow * $scale, 0 );
    $nh = round( $oh * $scale, 0 );
    $dstim = imagecreatetruecolor( $nw, $nh );
    imagecopyresampled( $dstim, $srcim, 0, 0, 0, 0, $nw, $nh, $ow, $oh );
    $result = imagejpeg( $dstim, $newfilename, 85 );
    imagedestroy( $dstim );
    imagedestroy( $srcim );
    return $result;
}

$allowPics = array("jpg","jpeg","jpe","gif","png");
$errmsg = "";
$imgID = 0;

if(isset($_POST['uppic']))
{
    if($_FILES['imagefile']['size'] > 1024000)
    {
        $errmsg = "Too large!";
    }
    else
    {
        $extension = strtolower(end(explode(".",$_FILES['imagefile']['name'])));
        if(!in_array($extension,$allowPics))
        {
            $errmsg = "Wrong filetype!";
        }
        else
        {
            move_uploaded_file($_FILES['imagefile']['tmp_name'],"latest.img");
            $instr  = fopen("latest.img","rb");
            $image  = addslashes(fread($instr,filesize("latest.img")));
            fclose($instr);
           
            resize("latest.img","latest.img",110,110);
            $instr  = fopen("latest.img","rb");
            $resized = addslashes(fread($instr,filesize("latest.img")));
            fclose($instr);
           
            mysql_query ("INSERT INTO tbl_680819 (extension,smallimg,largeimg,datotid) VALUES ('".$extension."','".$resized."','".$image."',now())") or die(mysql_error());
            $imgID = mysql_insert_id();
        }
    }
}

?>

<html>
<head>
<title>Upload an image to a database</title>
<?php
if(!empty($errmsg))
{
    echo "<h3>Error: " . $errmsg . "</h3>";
}
if($imgID > 0)
{
    echo "<a href=\"680819-image.php?id=".$imgID."\"><img src=\"680819-image.php?id=".$imgID."&type=1\"><a/><br>";
}
?>
<h2>Please upload a new picture</h2>
<form enctype="multipart/form-data" method="post">
Please choose an image to upload: <input type="file" name="imagefile"><br>
then: <input type="submit" name="uppic" value="Upload"></form><br>
</body>
</html>

Har et fuldt eksempel her: http://www.codebreaker.dk/exp/680819.php

@jakobdo

Hvordan gør jeg så sådan at den også viser det fulde link til billedet i en input jeg har i forvejen?

Den var straks værre...
Det findes faktisk ikke i det jeg har lavet der!
Og dog, så skulle det være i stil med:
http://www.codebreaker.dk/exp/680819-image.php?id=3

Hvorfor vil du have linket i et input felt?

Fordi jeg gerne vil have det sat sammen med et nuværende admin panel jeg har :)

Skal det være et helt almindelig <input type="text"> felt hvor linket skal stå i efterfølgende?

Ja...

Prøv at se siden nu: http://www.codebreaker.dk/exp/680819.php

Det ser sgu godt nok ud :)

Ligger du så lige hele koden?

//680819-action.php
<?php
session_start();
if($_SESSION['image'] == $_GET['id'])
{
    require("./connect.php");
    $imgID  = mysql_real_escape_string($_GET['id']);
    $action = mysql_real_escape_string($_GET['a']);
    switch($action)
    {
        case 0:
            //DELETE
            mysql_query("DELETE FROM tbl_680819 WHERE id = ".$imgID." LIMIT 1");
        case 1:
            //KEEP
            mysql_query("UPDATE tbl_680819 SET status = 1 WHERE id = ".$imgID." LIMIT 1");
    }
}
$_SESSION['url']  = true;

header("Location: " . $_SERVER['HTTP_REFERER']);
exit();
?>

//680819-image.php
<?php

require_once("./connect.php");

$imgID = mysql_real_escape_string($_GET['id']);

$type = "";
switch($_GET['type'])
{
    case 1:
        $type = "small";
        break;
    default:
        $type = "large";
}

$query = mysql_query("SELECT ".$type."img FROM tbl_680819 WHERE id = '".$imgID."' LIMIT 1") or die (mysql_error());

if(mysql_num_rows($query)>0)
{
    $row = mysql_fetch_assoc($query);
    header("Content-type: image/jpeg");
    print $row[$type.'img'];
    exit ();
}

?>

//680819.php
<?php
//http://www.eksperten.dk/spm/680819
session_start();

require("./connect.php");

//Sletter alle pics som ikke er godkendt...
mysql_query("DELETE FROM tbl_680819 WHERE status = 0 AND datotid < ADDDATE(INTERVAL -1 HOUR)");

function resize( $filename, $newfilename, $maxw, $maxh, $ext )
{
    $result = false;
    switch($ext)
    {
        case "jpg":
        case "jpeg":
        case "jpe":
            $srcim = imagecreatefromjpeg( $filename );
            break;
       
        case "gif":
            $srcim = imagecreatefromgif( $filename );
            break;
       
        case "png":
            $srcim = imagecreatefrompng( $filename );
            break;
       
        default:
            return false;
    }
    $ow = imagesx( $srcim );
    $oh = imagesy( $srcim );
    $wscale = $maxw / $ow;
    $hscale = $maxh / $oh;
    $scale = ( $hscale < $wscale ? $hscale : $wscale );
    $nw = round( $ow * $scale, 0 );
    $nh = round( $oh * $scale, 0 );
    $dstim = imagecreatetruecolor( $nw, $nh );
    imagecopyresampled( $dstim, $srcim, 0, 0, 0, 0, $nw, $nh, $ow, $oh );
   
    switch($ext)
    {
        case "jpg":
        case "jpeg":
        case "jpe":
            $result = imagejpeg( $dstim, $newfilename, 85 );
            break;
       
        case "gif":
            $result = imagegif( $dstim, $newfilename );
            break;
       
        case "png":
            $result = imagepng( $dstim, $newfilename );
            break;
       
        default:
            return false;
    }
   
    imagedestroy( $dstim );
    imagedestroy( $srcim );
    return $result;
}

$allowPics = array("jpg","jpeg","jpe","gif","png");
$errmsg = "";
$imgID = 0;

if(isset($_POST['uppic']))
{
    if($_FILES['imagefile']['size'] > 1024000)
    {
        $errmsg = "Too large!";
    }
    else
    {
        $extension = strtolower(end(explode(".",$_FILES['imagefile']['name'])));
        if(!in_array($extension,$allowPics))
        {
            $errmsg = "Wrong filetype!";
        }
        else
        {
            move_uploaded_file($_FILES['imagefile']['tmp_name'],"latest.img");
            $image  = mysql_real_escape_string(file_get_contents("latest.img"));

            resize("latest.img","latest.img",110,110,$extension);
            $resized  = mysql_real_escape_string(file_get_contents("latest.img"));
           
            mysql_query ("INSERT INTO tbl_680819 (extension,smallimg,largeimg,datotid) VALUES ('".$extension."','".$resized."','".$image."',now())") or die(mysql_error());
            $imgID = mysql_insert_id();
            $_SESSION['image'] = $imgID;
        }
    }
}

?>

<html>
<head>
<title>Upload an image to a database</title>
<?php
if(!empty($errmsg))
{
    echo "<h3>Error: " . $errmsg . "</h3>";
}
if($imgID > 0)
{
    echo "<a href=\"680819-image.php?id=".$imgID."\"><img src=\"680819-image.php?id=".$imgID."&type=1\"><a/><br>";
    echo "<a href=\"680819-action.php?id=".$imgID."&a=1\">Accept</a> - <a href=\"680819-action.php?id=".$imgID."&a=0\">Delete</a><br>";
}
if($_SESSION['url'] === true)
{
    echo "<input type=\"text\" size=\"50\" value=\"http://www.codebreaker.dk/exp/680819-image.php?id=".$_SESSION['image']."\">\n";
    $_SESSION['url'] = false;
    $_SESSION['image'] = 0;
}
?>
<h2>Please upload a new picture</h2>
<form enctype="multipart/form-data" method="post">
Please choose an image to upload: <input type="file" name="imagefile"><br>
then: <input type="submit" name="uppic" value="Upload"></form><br>
</body>
</html>

Den her:
require("./connect.php");
Hvor er den?

<?php

$host = "host";
$user = "user";
$pass = "pass";
$db  = "db";

$link = mysql_connect($host,$user,$pass);
if (!$link)
{
    die("Not connected : " . mysql_error());
}

$db_selected = mysql_select_db($db, $link);
if (!$db_selected)
{
    die("Not selected :  " . $db . " : " . mysql_error());
}
?>

Og skal jeg selv oprette tabeller i min database?

Jeg brugte denne:

CREATE TABLE tbl_680819 (
  id mediumint(9) NOT NULL auto_increment,
  extension varchar(4) NOT NULL default '',
  smallimg mediumblob NOT NULL,
  largeimg longblob NOT NULL,
  `status` tinyint(4) NOT NULL default '0',
  datotid datetime NOT NULL default '0000-00-00 00:00:00',
  PRIMARY KEY  (id)
) ENGINE=MyISAM;

Kan man ikke klare det uden MySQL?

Altså der er jo faktisk ikke brug for så stor en kode, da jeg faktisk bare skal have den til at vise URL'en på billedet den har uploadet. :)

Du har ret!
Men koden kan godt mindskes!
Der er bare godkend/afvis kode med!

Kan du ikke korte koden ned og gøre det uden MySQL?

Måske sådan her:

<?php
//http://www.eksperten.dk/spm/680819
session_start();

$upload = "./upload/";
$allowPics = array("jpg","jpeg","jpe","gif","png");
$errmsg = "";

if(isset($_POST['uppic']))
{
    if($_FILES['imagefile']['size'] > 1024000)
    {
        $errmsg = "Too large!";
    }
    else
    {
        $extension = strtolower(end(explode(".",$_FILES['imagefile']['name'])));
        if(!in_array($extension,$allowPics))
        {
            $errmsg = "Wrong filetype!";
        }
        else
        {
            if(move_uploaded_file($_FILES['imagefile']['tmp_name'],$upload . $_FILES['imagefile']['name']))
            {
                $_SESSION['image'] = $_FILES['imagefile']['name'];
            }
            else
            {
                $errmsg = "Upload Failed!";
            }
    }
    }
}

?>

<html>
<head>
<title>Upload an image</title>
<h2>Please upload a new picture</h2>
<?php
if(!empty($errmsg))
{
    echo "<h4>" . $errmsg . "</h4>\n";
}
if(isset($_SESSION['image']))
{
    echo "<input type=\"text\" size=\"50\" value=\"http://www.codebreaker.dk/exp/upload/".$_SESSION['image']."\"><br>\n";
    $_SESSION = array();
    session_destroy();
}
?>
<form enctype="multipart/form-data" method="post">
Please choose an image to upload: <input type="file" name="imagefile"><br>
then: <input type="submit" name="uppic" value="Upload"></form><br>
</body>
</html>

Yes, det virker sgu :)

Tak for det

Men du mangler jo lidt preview funktionen der?