PHP - Original Image Size, Thumbnail Image, Anchor Tag, Referencing?
The script for creating a new file name for the image:
$validextensions = array("jpeg", "jpg", "png"); //Extensions which are allowed $ext = explode('.', basename($_FILES['file']['name'][$i]));//explode file name from dot(.) $file_extension = end($ext); //store extensions in the variable $new_image_name = md5(uniqid()) . "." . $ext[count($ext) - 1]; $target_path = $target_path . $new_image_name;//set the target path with a new name of imageThe script creates a new file like: f6c9b8d9db05366c3504210cded9ddb2.jpgand moves the file to the "uploads" folder. And then the script also creates a thumbnail with the same file name and moves the file to the "thumbs" folder. The issue I am having is that the same ID code could happen again for a different image in the database, thus I would be calling a different original sized image than the thumbnail image. My question is: How to avoid this issue of the same ID code has happened again for a different file. What is the proper way to reference the anchor tag of the thumbnail image to its actual original sized image? With the script I have the thumbnail image would be coming from the "thumbs" folder and the anchor tag would get referenced to the "uploads" folder to get the original sized image. Edited by glassfish, 12 October 2014 - 05:51 AM. Similar Tutorialscould someone help in how to resize a uploaded image size, say if someone is uploading a 1mb photo to my server, i wish for it to become 100kb and also resize its width and height? here is my code Code: [Select] //////////////////////////////////////uploader else if($action=="uploader") { echo "Upload your picture and copy the link <br/>after uploading to user it at gallery.<br/><br/>"; echo "<form method=\"post\" enctype=\"multipart/form-data\" action=\"index.php?action=uploaded&sid=$sid\">"; echo "Choose Pictu <br />"; echo "<input name=\"uploaded\" type=\"file\" /><br /><br />"; echo "<input type=\"submit\" value=\"Upload\" />"; echo "</form><br/>"; echo "<p align=\"center\">"; echo "<a href=\"index.php?action=main&sid=$sid\">Home</a>"; echo "</p>"; } //////////////////////////////////////uploader else if($action=="uploaded") { $blacklist = array(".php", ".php.jpg", ".php.jpeg", ".php.gif", ".php.png", ".phtml", ".php3", ".php4"); foreach ($blacklist as $item) { if(preg_match("/$item\$/i", $_FILES['uploaded']['name'])) { echo "<p align=\"center\">"; echo "Oops sorry we do not allow those files.<br/>"; echo "<a href=\"index.php?action=main&sid=$sid\">Home</a>"; echo "</p>"; exit; } } $target = "../images/"; $target = $target . basename( $_FILES['uploaded']['name']) ; $ok=1; if (file_exists("../images/" . $_FILES["uploaded"]["name"])) { echo "<p align=\"center\">"; echo $_FILES["file"]["name"] . "Oops file name already exists<br/> kindly rename your picture and upload again. <br/>"; echo "<a href=\"index.php?action=main&sid=$sid\">Home</a>"; echo "</p>"; }else{ //This is our size condition if ($uploaded_size > 25600){ echo "Your file is too large. We have a 25kb limit.<br/>"; $ok=0; } $types = array('image/jpeg', 'image/gif', 'image/png'); if (in_array($_FILES['uploaded']['type'], $types)) { // file is okay continue } else { $ok=0; } //Here we check that $ok was not set to 0 by an error if ($ok==0){ echo "<p align=\"center\">"; Echo "Sorry your file was not uploaded.<br/> It may be the wrong filetype. <br/>We only allow JPG, GIF, and PNG filetypes.<br/>"; echo "<a href=\"index.php?action=main&sid=$sid\">Home</a>"; echo "</p>"; } //If everything is ok we try to upload it else{ if(move_uploaded_file($_FILES['uploaded']['tmp_name'], $target)){ echo "<p align=\"center\">"; echo "The file ". basename( $_FILES['uploadedfile']['name']). " Picture uploaded successfully.<br/><br/><b>$target <br/>"; echo "<a href=\"index.php?action=main&sid=$sid\">Home</a>"; echo "</p>"; } else{ echo "<p align=\"center\">"; echo "Sorry, there was a problem uploading your file.<br/>"; echo "<a href=\"index.php?action=main&sid=$sid\">Home</a>"; echo "</p>"; } } } } After image is drop into container , I want to move copy of the original image to be move when original image dragend within container. I tried but it display copy image each time when original image dragend. can anyone help me?
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Prototype</title> <script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script> <script src="http://d3lp1msu2r81bx.cloudfront.net/kjs/js/lib/kinetic-v4.7.2.min.js"></script> <script src="http://code.jquery.com/ui/1.9.2/jquery-ui.min.js"></script> <style> body{padding:20px;} #container{ border:solid 1px #ccc; margin-top: 10px; width:350px; height:350px; } #toolbar{ width:350px; height:35px; border:solid 1px blue; } </style> <script> $(function(){ var $house=$("#house"); $house.hide(); var $stageContainer=$("#container"); var stageOffset=$stageContainer.offset(); var offsetX=stageOffset.left; var offsetY=stageOffset.top; var stage = new Kinetic.Stage({ container: 'container', width: 350, height: 350 }); var layer = new Kinetic.Layer(); stage.add(layer); var image1=new Image(); image1.onload=function(){ $house.show(); } image1.src="http://vignette1.wikia.nocookie.net/angrybirds/images/b/b6/Small.png/revision/latest?cb=20120501022157"; $house.draggable({ helper:'clone', }); $house.data("url","house.png"); // key-value pair $house.data("width","32"); // key-value pair $house.data("height","33"); // key-value pair $house.data("image",image1); // key-value pair $stageContainer.droppable({ drop:dragDrop, }); function dragDrop(e,ui){ var x=parseInt(ui.offset.left-offsetX); var y=parseInt(ui.offset.top-offsetY); var element=ui.draggable; var data=element.data("url"); var theImage=element.data("image"); var image = new Kinetic.Image({ name:data, x:x, y:y, image:theImage, draggable: true, dragBoundFunc: function(pos) { return { x: pos.x, y: this.getAbsolutePosition().y } } }); image.on("dragend", function(e) { var points = image.getPosition(); var image1 = new Kinetic.Image({ name: data, id: "imageantry", x: points.x+65, y: points.y, image: theImage, draggable: false }); layer.add(image1); layer.draw(); }); image.on('dblclick', function() { image.remove(); layer.draw(); }); layer.add(image); layer.draw(); } }); // end $(function(){}); </script> </head> <body> <div id="toolbar"> <img id="house" width=32 height=32 src="http://vignette1.wikia.nocookie.net/angrybirds/images/b/b6/Small.png/revision/latest?cb=20120501022157"><br> </div> <div id="container"></div> </body> </html> Edited by Biruntha, 08 January 2015 - 10:14 AM. This resizer works fine except I would like it to save the original image AND the thumbnail. Right now its only saving the cropped thumbnail. It's seems simple enough but I've tried several different ways but can't get it to work. :( I would appreciate your help. :) define( 'DESIRED_IMAGE_WIDTH', 150 ); define( 'DESIRED_IMAGE_HEIGHT', 150 ); $source_path = $_FILES[ 'thumb' ][ 'tmp_name' ]; $timestamp = time(); $target = "image_files/".$imagename; move_uploaded_file($source, $target); // // Add file validation code here // list( $source_width, $source_height, $source_type ) = getimagesize( $source_path ); switch ( $source_type ) { case IMAGETYPE_GIF: $source_gdim = imagecreatefromgif( $source_path ); break; case IMAGETYPE_JPEG: $source_gdim = imagecreatefromjpeg( $source_path ); break; case IMAGETYPE_PNG: $source_gdim = imagecreatefrompng( $source_path ); break; } $source_aspect_ratio = $source_width / $source_height; $desired_aspect_ratio = DESIRED_IMAGE_WIDTH / DESIRED_IMAGE_HEIGHT; if ( $source_aspect_ratio > $desired_aspect_ratio ) { // // Triggered when source image is wider // $temp_height = DESIRED_IMAGE_HEIGHT; $temp_width = ( int ) ( DESIRED_IMAGE_HEIGHT * $source_aspect_ratio ); } else { // // Triggered otherwise (i.e. source image is similar or taller) // $temp_width = DESIRED_IMAGE_WIDTH; $temp_height = ( int ) ( DESIRED_IMAGE_WIDTH / $source_aspect_ratio ); } // // Resize the image into a temporary GD image // $temp_gdim = imagecreatetruecolor( $temp_width, $temp_height ); imagecopyresampled( $temp_gdim, $source_gdim, 0, 0, 0, 0, $temp_width, $temp_height, $source_width, $source_height ); // // Copy cropped region from temporary image into the desired GD image // $x0 = ( $temp_width - DESIRED_IMAGE_WIDTH ) / 2; $y0 = ( $temp_height - DESIRED_IMAGE_HEIGHT ) / 2; $desired_gdim = imagecreatetruecolor( DESIRED_IMAGE_WIDTH, DESIRED_IMAGE_HEIGHT ); imagecopy( $desired_gdim, $temp_gdim, 0, 0, $x0, $y0, DESIRED_IMAGE_WIDTH, DESIRED_IMAGE_HEIGHT ); // // Render the image // Alternatively, you can save the image in file-system or database // header( 'Content-type: image/jpeg' ); imagejpeg( $desired_gdim, "image_files/" . $timestamp . $_FILES["thumb"]["name"] ); Hi! my code uploads an image and saves it to an upload folder, but I want to create a thumbnail of it. For example, if I upload a 1400x1000 JPG, I would like to resize the image and it has to respect the proportion given a maximum size. if I say the maximum width/height is 250px, the image should be thumbnailed according to the max height/width, and in proportion with the width/height Thanks in advance Fernando Help me I am getting Notice: Undefined index: extension Hi, I have a script that uploads an image to a directory and then saves the fill path to a field in a table for later use. The only problem is people are uploading huge images and then when I produce a catalogue of my listings it takes forever to load because the images are so big. What I am after is an add in script to create an ADDITIONAL image 100 x 75px, I don't really want to change my upload script. Any ideas? Thanks in advace. Here is what I have: Code: [Select] <?php $idir = "../fleet/"; // Path To Images Directory if (isset ($_FILES['fupload'])){ //upload the image to tmp directory $url = $_FILES['fupload']['name']; // Set $url To Equal The Filename For Later Use if ($_FILES['fupload']['type'] == "image/jpg" || $_FILES['fupload']['type'] == "image/jpeg" || $_FILES['fupload']['type'] == "image/pjpeg") { $file_ext = strrchr($_FILES['fupload']['name'], '$account.'); // Get The File Extention In The Format Of , For Instance, .jpg, .gif or .php $copy = copy($_FILES['fupload']['tmp_name'], "$idir" . $_FILES['fupload']['name']); // Move Image From Temporary Location To Perm } } $fleetimage1 = mysql_real_escape_string("$idir" . $_FILES['fupload']['name']); //then insert sql code below... ?> Im trying to write an image upload script which checks various elements of the image and then saves it and and a thumbnail into a folder. At the moment I am getting a white screen which makes me think I have a syntax error so I have come here to find some fresh eyes to help me out. Can anyone see any reason why this wouldn't be working? Form Code: [Select] <form enctype='multipart/form-data' action='upload_image.php' method='POST'> <table class='uploads-form'> <tr> <td><input name='image' type='file' /><input type='hidden' name'MAX_FILE_SIZE' value='5000000' /></td> </tr> <tr> <td><input type='submit' name='upload_image' value='Upload' /></td> </tr> </table> </form> php <?php error_reporting(E_ALL); ini_set("display_errors", 1); $images_location = "project_files/"; $thumbs_location = "project_thumbs/"; $thumb_width = "100"; $maximum_size = "5000000"; //Auto Thumbnail Function function create_thumbnail($source,$destination, $thumb_width) { $size = getimagesize($source); $width = $size[0]; $height = $size[1]; $x = 0; $y = 0; if($width> $height) { $x = ceil(($width - $height) / 2 ); $width = $height; } elseif($height> $width) { $y = ceil(($height - $width) / 2); $height = $width; } $new_image = imagecreatetruecolor($thumb_width,$thumb_width) or die('Cannot initialize new GD image stream'); $extension = get_image_extension($source); if($extension=='jpg' || $extension=='jpeg') $image = imagecreatefromjpeg($source); if($extension=='gif') $image = imagecreatefromjpeg($source); if($extension=='png') $image = imagecreatefromjpeg($source); imagecopyresampled($new_image,$image,0,0,$x,$y,$thumb_width,$thumb_width,$width,$height); if($extension=='jpg' || $extension=='jpeg') imagejpeg($new_image,$destination); if($extension=='gif') $imagegif($new_image,$destination); if($extension=='png') imagepng($new_image,$destination); } //Get Extension Function function get_image_extension($name) { $name = strtolower($name); $i = strrpos($name,"."); if (!$i) { return ""; } $l = strlen($name) - $i; $extension = substr($name,$i+1,$l); return $extension; } //Random Name Function function random_name($length) { $characters = "abcdefghijklmnopqrstuvwxyz01234567890"; $name = ""; for ($i = 0; $i < $length; $i++) { $name .= $character[mt_rand(0, strlen($characters) - 1)]; } return "image-".$name; } //Check And Save Image if(isset($_POST['upload_image'])) { if($_FILES['image']['name'] == ""){ echo = "Please select the image you would like to upload by clicking browse"; } else{ $size=filesize($_FILES['image']['tap_name']); $filename = stripslashes($_FILES['image']['name']); $extension = get_image_extension($filename); if($size > $maximum_size) { echo = "Your file size exceeds the maximum file size!"; } else if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif")) { echo = "Only the following extensions are allowed. 'jpg', 'jpeg', 'png', 'gif'."; } else { $image_random_name=random_name(15).".".$extension; $copy = @copy($_FILES['image']['tmp_name'], $images_location.$image_random_name); if (!$copy) { echo = "Error while uploadin your image! Please try again!"; } else{ create_thumbnail($images_location.$image_random_name,$thumbs_location.$image_random_name, $thumb_width); echo = "Your image has been uploaded!"; } } } } ?> I have a form where you can enter a image url and it's title. It calls display.php which displays the image as well as the title. But I want the image to be displayed as a thumbnail of size 150X100. Do i have to store it in directory before I convert it and display? If so, can somebody tell me how to convert the image into a thumbnail? Here is my code: Code: [Select] <table align="center" bgcolor="silver"> <form action="display.php" method ="post"> <tr> <td align="center"><b><font color="#214754" size="3">Reg</font></b></td> </tr> <tr> <td> Title: </td> <td><input type="text" size ="40" name="registry_title1" /></td> </tr> <tr> <td> Image URL: </td> <td><input type="text" size ="40" name="registry_img1" /></td> </tr> <tr> <td> <input type="submit" name="submit" value="submit" /> </td> </tr> </form> </table> </div> here is the code for display.php Code: [Select] <? /* Get Registry details */ $registry_img1=$_POST['registry_img1']; $registry_title1=stripslashes($_POST['registry_title1']); ?> <html> <body> <table width='600' cellspacing='0' cellpadding='0' border='0' bgcolor='#ffffff' align='center'> <tr> <td style='padding-bottom:8px';><font style='font-size:18px;color:rgb(0, 0, 0);text-decoration:none'><a style='font-size:18px;color:rgb(0, 0, 0);text-decoration:none' href='#'><? echo ucfirst($url); ?> Registry</font></a></td> </tr> <tr> <td style='padding-bottom:10px;'> <a style='color:rgb(206, 0, 0);font-size:14px;font-weight:bold;line-height:18px;text-decoration:none' href='<? echo $registry_url1; ?>' target='_blank'><img style='padding-right:10px' border='0' align='left' alt='' src='<? echo $registry_img1; ?>'><? echo $registry_title1;?> </a> </td> </table> </body> </html> I am working on an uploader and slowly getting it working, I am uploading 3 images at once, and setting arrays for each one as keys, with an increment of ++1. I am wanting to resize the image before it gets copied to the thumbnail folder. I have this code.
Everything works with it. As you see, I started on getting the file info, but after that I am totally stuck on what to do after to resize the image proportionally with a maximum width of xPX and height to match it without looking distorted. Any help would be really appreciated. Thank You. Hi, I am trying to make a simple thumbnail gallery where you upload an image, the image gets resized, a thumbnail is created in the "images/small/" directory, and the main images are in the "images/" directory. I need to somehow read from both directories, and do an image link with the thumbnail linking to the larger image. I think that means displaying from two directories, I don't know how to do that, please any help greatly appreciated. Thank you. here is my code so far Code: [Select] <?php error_reporting(0); $change=""; $abc=""; define ("MAX_SIZE","400"); function getExtension($str) { $i = strrpos($str,"."); if (!$i) { return ""; } $l = strlen($str) - $i; $ext = substr($str,$i+1,$l); return $ext; } $errors=0; if($_SERVER["REQUEST_METHOD"] == "POST") { $image =$_FILES["file"]["name"]; $uploadedfile = $_FILES['file']['tmp_name']; if ($image) { $filename = stripslashes($_FILES['file']['name']); $extension = getExtension($filename); $extension = strtolower($extension); if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif")) { $change='<div class="msgdiv">Unknown Image extension </div> '; $errors=1; } else { $size=filesize($_FILES['file']['tmp_name']); if ($size > MAX_SIZE*1024) { $change='<div class="msgdiv">You have exceeded the size limit!</div> '; $errors=1; } if($extension=="jpg" || $extension=="jpeg" ) { $uploadedfile = $_FILES['file']['tmp_name']; $src = imagecreatefromjpeg($uploadedfile); } else if($extension=="png") { $uploadedfile = $_FILES['file']['tmp_name']; $src = imagecreatefrompng($uploadedfile); } else { $src = imagecreatefromgif($uploadedfile); } echo $scr; list($width,$height)=getimagesize($uploadedfile); //**Original**// //$newwidth=60; //$newheight=($height/$width)*$newwidth; //**Modified to use height instead of width**// //$newheight=350; //$newwidth=($width/$height)*$newheight; // **IF NOT resizing full image then just pass variables.**// $newheight=$height; $newwidth=$width; //***adjust tmp***// $tmp=imagecreatetruecolor($newwidth,$newheight); //Thumbs $newheight1=180; $newwidth1=($width/$height)*$newheight1; //**Original**// //$newwidth1=25; //$newheight1=($height/$width)*$newwidth1; $tmp1=imagecreatetruecolor($newwidth1,$newheight1); imagecopyresampled($tmp,$src,0,0,0,0,$newwidth,$newheight,$width,$height); imagecopyresampled($tmp1,$src,0,0,0,0,$newwidth1,$newheight1,$width,$height); $filename = "images/". $_FILES['file']['name']; $filename1 = "images/small/". $_FILES['file']['name']; imagejpeg($tmp,$filename,100); imagejpeg($tmp1,$filename1,100); imagedestroy($src); imagedestroy($tmp); imagedestroy($tmp1); }} } //If no errors registred, print the success message if(isset($_POST['Submit']) && !$errors) { // mysql_query("update {$prefix}users set img='$big',img_small='$small' where user_id='$user'"); $change=' <div class="msgdiv">Image Uploaded Successfully!</div>'; } ?> <!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml" lang="en"><head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> <meta content="en-us" http-equiv="Content-Language"> <title>picture demo</title> <link href=".css" media="screen, projection" rel="stylesheet" type="text/css"> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.0/jquery.min.js"></script> <script type="text/javascript" src="js/jquery_002.js"></script> <script type="text/javascript" src="js/displaymsg.js"></script> <script type="text/javascript" src="js/ajaxdelete.js"></script> <style type="text/css"> .help { font-size:11px; color:#006600; } body { color: #000000; background-color:#999999 ; background:#999999 url(<?php echo $user_row['img_src']; ?>) fixed repeat top left; font-family:"Lucida Grande", "Lucida Sans Unicode", Verdana, Arial, Helvetica, sans-serif; } .msgdiv{ width:759px; padding-top:8px; padding-bottom:8px; background-color: #fff; font-weight:bold; font-size:18px;-moz-border-radius: 6px;-webkit-border-radius: 6px; } #container{width:763px;margin:0 auto;padding:3px 0;text-align:left;position:relative; -moz-border-radius: 6px;-webkit-border-radius: 6px; background-color:#FFFFFF } </style> </head><body> <div align="center" id="err"> <?php echo $change; ?> </div> <div id="space"></div> <div id="container" > <div id="con"> <table width="502" cellpadding="0" cellspacing="0" id="main"> <tbody> <tr> <td width="500" height="238" valign="top" id="main_right"> <div id="posts"> <img src="<?php echo $filename; ?>" /> <img src="<?php echo $filename1; ?>" /> <form method="post" action="" enctype="multipart/form-data" name="form1"> <table width="500" border="0" align="center" cellpadding="0" cellspacing="0"> <tr><Td style="height:25px"> </Td></tr> <tr> <td width="150"><div align="right" class="titles">Picture : </div></td> <td width="350" align="left"> <div align="left"> <input size="25" name="file" type="file" style="font-family:Verdana, Arial, Helvetica, sans-serif; font-size:10pt" class="box"/> </div></td> </tr> <tr><Td></Td> <Td valign="top" height="35px" class="help">Image maximum size <b>400 </b>kb</span></Td> </tr> <tr><Td></Td><Td valign="top" height="35px"><input type="submit" id="mybut" value=" Upload " name="Submit"/></Td></tr> <tr> <td width="200"> </td> <td width="200"><table width="200" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="200" align="center"><div align="left"></div></td> <td width="100"> </td> </tr> </table></td> </tr> </table> </form> </div> </td> </tr> </tbody> </table> </div> </div> </body></html> I am working on a simple gallery. I want to have an option to download full scale image without users having to right click and "save as". Using this code you get a image preview: <a href="pictures/img-(1).jpg"><img src="thumbnails/img-(1).jpg"></a> How can I modify it so when user clicks on thumbnail of image 1 it will prompt him to save the image instead of viewing it. Thanks Greetings, What I'm trying to do is have users upload their event information into a database which would include a flyer. I don't want the image file to go into the database (other than the filename) rather I'd like it to be dropped into a directory. In the same script I'd like to dynamically generate a thumbnail. I have the two scripts and separately they work fine, but I can't get them to work together. I'm guessing the conflict because the thumbnail script is using $_POST and the mysql script is using $_SESSION. If so how can I modify them to both use $_SESSION? The thumbnail script is goes from line 1 - 146 and the mysql portion is the rest. The results of processing this look something like this. QUERY TEXT: INSERT INTO td_events (eventgenre_sel, eventname, eventvenue, eventdate, eventgenre, eventprice, eventpromoter, eventflyer) VALUES ('12', 'spooky times', 'Ironwood Stage & Grill', '2010-12-17 22:36:00', 'DNB', '5000', 'me', '174366-1.jpg') <?php $debug = FALSE; /********************************************************************************************** CREATES THUMBNAIL **********************************************************************************************/ //define a maxim size for the uploaded images define ("MAX_SIZE","1024"); // define the width and height for the thumbnail // note that theese dimmensions are considered the maximum dimmension and are not fixed, // because we have to keep the image ratio intact or it will be deformed define ("WIDTH","500"); define ("HEIGHT","650"); // this is the function that will create the thumbnail image from the uploaded image // the resize will be done considering the width and height defined, but without deforming the image function make_thumb($img_name,$filename,$new_w,$new_h) { //get image extension. $ext=getExtension($img_name); //creates the new image using the appropriate function from gd library if(!strcmp("jpg",$ext) || !strcmp("jpeg",$ext) || !strcmp("JPG",$ext)) $src_img=imagecreatefromjpeg($img_name); if(!strcmp("png",$ext) || !strcmp("PNG",$ext)) $src_img=imagecreatefrompng($img_name); //gets the dimmensions of the image $old_x=imageSX($src_img); $old_y=imageSY($src_img); // next we will calculate the new dimmensions for the thumbnail image // the next steps will be taken: // 1. calculate the ratio by dividing the old dimmensions with the new ones // 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable // and the height will be calculated so the image ratio will not change // 3. otherwise we will use the height ratio for the image // as a result, only one of the dimmensions will be from the fixed ones $ratio1=$old_x/$new_w; $ratio2=$old_y/$new_h; if($ratio1>$ratio2) { $thumb_w=$new_w; $thumb_h=$old_y/$ratio1; } else { $thumb_h=$new_h; $thumb_w=$old_x/$ratio2; } // we create a new image with the new dimmensions $dst_img=ImageCreateTrueColor($thumb_w,$thumb_h); // resize the big image to the new created one imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y); // output the created image to the file. Now we will have the thumbnail into the file named by $filename if(!strcmp("png",$ext)) imagepng($dst_img,$filename); else imagejpeg($dst_img,$filename); //destroys source and destination images. imagedestroy($dst_img); imagedestroy($src_img); } // This function reads the extension of the file. // It is used to determine if the file is an image by checking the extension. function getExtension($str) { $i = strrpos($str,"."); if (!$i) { return ""; } $l = strlen($str) - $i; $ext = substr($str,$i+1,$l); return $ext; } // This variable is used as a flag. The value is initialized with 0 (meaning no error found) // and it will be changed to 1 if an error occurs. If the error occurs the file will not be uploaded. $errors=0; // checks if the form has been submitted if(isset($_POST['Submit'])) { //reads the name of the file the user submitted for uploading $image=$_FILES['eventflyer']['name']; // if it is not empty if ($image) { // get the original name of the file from the clients machine $filename = stripslashes($_FILES['eventflyer']['name']); // get the extension of the file in a lower case format $extension = getExtension($filename); $extension = strtolower($extension); // if it is not a known extension, we will suppose it is an error, print an error message // and will not upload the file, otherwise we continue if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "JPG") && ($extension != "PNG") && ($extension != "png")) { echo '<h1>Unknown extension!</h1>'; $errors=1; } else { // get the size of the image in bytes // $_FILES[\'image\'][\'tmp_name\'] is the temporary filename of the file in which // the uploaded file was stored on the server $size=getimagesize($_FILES['eventflyer']['tmp_name']); $sizekb=filesize($_FILES['eventflyer']['tmp_name']); //compare the size with the maxim size we defined and print error if bigger if ($sizekb > MAX_SIZE*500) { echo '<h1>You have exceeded the size limit!</h1>'; $errors=1; } //we will give an unique name, for example the time in unix time format $image_name=$filename; //the new name will be containing the full path where will be stored (images folder) $newname="flyers/".$image_name; $copied = copy($_FILES['eventflyer']['tmp_name'], $newname); //we verify if the image has been uploaded, and print error instead if (!$copied) { echo '<h1>Copy unsuccessfull!</h1>'; $errors=1; } else { // the new thumbnail image will be placed in images/thumbs/ folder $thumb_name='flyers/thumb_'.$image_name; // call the function that will create the thumbnail. The function will get as parameters // the image name, the thumbnail name and the width and height desired for the thumbnail $thumb=make_thumb($newname,$thumb_name,WIDTH,HEIGHT); }} }} //If no errors registred, print the success message and show the thumbnail image created if(isset($_POST['Submit']) && !$errors) { echo "<h1>Thumbnail created Successfully!</h1>"; echo '<img src="'.$thumb_name.'">'; } /************************************************************ Adjust the headers... ************************************************************/ header("Expires: Thu, 17 May 2001 10:17:17 GMT"); // Date in the past header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified header ("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1 header ("Pragma: no-cache"); // HTTP/1.0 /***************************************************************************** Check the session details. we will store all the post variables in session variables this will make it easier to work with the verification routines *****************************************************************************/ session_start(); if (!isset($_SESSION['SESSION'])) require_once( "../include/session_init.php"); $arVal = array(); require_once("../include/session_funcs1.php"); reset ($_POST); while (list ($key, $val) = each ($_POST)) { if ($val == "") $val = "NULL"; $arVals[$key] = (get_magic_quotes_gpc()) ? $val : addslashes($val); if ($val == "NULL") $_SESSION[$key] = NULL; else $_SESSION[$key] = $val; if ($debug) echo $key . " : " . $arVals[$key] . "<br>"; } /********************************************************************************************** Make sure session variables have been set and then check for required fields otherwise return to the registration form to fix the errors. **********************************************************************************************/ // check to see if these variables have been set... if ((!isset($_SESSION["eventname"])) || (!isset($_SESSION["eventvenue"])) || (!isset($_SESSION["eventdate"])) || (!isset($_SESSION["eventgenre"])) || (!isset($_SESSION["eventprice"])) || (!isset($_SESSION["eventpromoter"])) || (!isset($_SESSION["eventflyer"]))) { resendToForm("?flg=red"); } // form variables must have something in them... if ($_SESSION['eventname'] == "" || $_SESSION['eventvenue'] == "" || $_SESSION['eventdate'] == "" || $_SESSION['eventgenre'] == "" || $_SESSION['eventprice'] == "" || $_SESSION['eventpromoter'] == "" || $_SESSION['eventflyer'] == "") { resendToForm("?flg=red"); } /********************************************************************************************** Insert into the database... **********************************************************************************************/ $conn = mysql_connect($_SESSION['MYSQL_SERVER1'],$_SESSION['MYSQL_LOGIN1'],$_SESSION['MYSQL_PASS1']) or die ('Error connecting to mysql'); mysql_select_db($_SESSION['MYSQL_DB1']) or die("Unable to select database"); $eventgenre_sel = addslashes($_REQUEST['eventgenre_sel']); $eventname = addslashes($_REQUEST['eventname']); $eventvenue = addslashes($_REQUEST['eventvenue']); $eventdate = addslashes($_REQUEST['eventdate']); $eventgenre = addslashes($_REQUEST['eventgenre']); $eventprice = addslashes($_REQUEST['eventprice']); $eventpromoter = addslashes($_REQUEST['eventpromoter']); $eventflyer = addslashes($_REQUEST['eventflyer']); $sqlquery = "INSERT INTO td_events (eventgenre_sel, eventname, eventvenue, eventdate, eventgenre, eventprice, eventpromoter, eventflyer) " ."VALUES ('$eventgenre_sel', '$eventname', '$eventvenue', '$eventdate', '$eventgenre', '$eventprice', '$eventpromoter', '$eventflyer')"; echo 'QUERY TEXT:<br />'.$sqlquery; $result = MYSQL_QUERY($sqlquery); $insertid = mysql_insert_id(); /*** This following function will update session variables and resend to the form so the user can fix errors ***/ function resendToForm($flags) { reset ($_POST); // store variables in session... while (list ($key, $val) = each ($_POST)) { $_SESSION[$key] = $val; } // go back to the form... //echo $flags; header("Location: /user_registration.php".$flags); exit; } mysql_close($conn); ?> I use a simple php code (taken from php.net example) to resize an image Code: [Select] list($width, $height) = getimagesize($filename); $new_height = $height / $width * 400; $image_p = imagecreatetruecolor(400, $new_height); $image = imagecreatefromjpeg($filename); imagecopyresampled($image_p, $image, 0, 0, 0, 0, 400, $new_height, $width, $height); imagejpeg($image_p, "new.jpg"); Here, we create a blank image and merge it with the resized image. I wonder if it is the simplest way to resize and save an image. Is it really necessary to create a blank background image? Is there a way I can get the .jpg file in kilobytes from a remote url and check it to make sure it does not exceed 40 kilobytes before it saves the remote url into my database? Hey My php function keeps returning an error on a valid image! I get this error: Quote could not make seekable I use this line to get the image size but i get the above error for it:$picturearray = getimagesize($Image); Url being tested : Code: [Select] http://www.fileden.com/files/2010/12/22/3043070/Sidroc.jpg The url is correct and the image does exist - does any one know what can cause this issue ? Hi, I'm developing a code that uploads images. I need to verify if the image have the minimum size of 100*100 pixels before the upload. How can I do this? Best Regards, Sorry for my bad english. Hey there so I'm using the below code to upload images/files to my server via ftp. The issue I've found is that anything bigger than 200KB either stalls out and partially uploads or doesn't upload at all. I've set my php.ini file to have upload_max_filesize = 1000M and post_max_size = 1000M. And still anything bigger than 200KB won't upload right. Any help would be appreciated. I'm using php version 5.2.14 fyi. Thanks so much. ---CODE--- <?if(!isset($_POST["submit"])){?> <!-- THE FORM ACTION IS ONTO ITSELF --> <form action="index.php" method="POST" enctype="multipart/form-data"> <input name="userfile" type="file" size="40"> <input type="submit" name="submit" value="Upload image" /> </form> <? } else { set_time_limit(30000);//i noticed that this had to be pretty big otherwise your upload was likely to stall out. $paths='/yourfilepath/yourfilepath/'; $filep=$_FILES['userfile']['tmp_name']; $ftp_server='ftp.yourdomain.com'; $ftp_user_name='your_user_name'; $ftp_user_pass='your_password'; $name=$_FILES['userfile']['name']; $conn_id = ftp_connect($ftp_server); $login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass); if ((!$conn_id) || (!$login_result)) { echo "FTP connection has encountered an error!"; echo "Attempted to connect to $ftp_server for user $ftp_user_name...."; exit; } else { echo ""; } $upload = ftp_put($conn_id, $paths.'/'.$name, $filep, FTP_BINARY); if (!$upload) { echo "FTP upload has encountered an error!"; } else { echo "Uploaded file with name $name Succsessfully "; } ftp_close($conn_id); } ?> hello anyone can help me to reduce image file size(reduce quality of images) using php ? (1) What does this actually do? (compress it?) $image = imagecreatefromjpeg("image.jpg"); header('Content-Type: image/jpeg'); imagejpeg($image); By using this rather than displaying by using www.site.com/image.jpg it reduces file size of an image from 2.5mb to 0.5mb !! (2) ImageMagick can't get these results. Am I doing something wrong? If I change the pixel size of an image in ImageMagick then I can reduce its file size, but (1) above reduces file size regardless of changing pixel size. |