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File: foto_upload.php

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  Classes of Olaf Lederer  >  Easy PHP Upload  >  foto_upload.php  >  Download  
File: foto_upload.php
Role: Application script
Content type: text/plain
Description: This extension can handle upload and image manipulation
Class: Easy PHP Upload
Validate and manage files upload via Web forms
Author: By
Last change: Moved the file delete method to the main class
Date: 9 years ago
Size: 6,687 bytes
 

Contents

Class file image Download
<?php
include ($_SERVER['DOCUMENT_ROOT']."/classes/upload/upload_class.php");
error_reporting(E_ALL);
ini_set("memory_limit", "64M");
set_time_limit(60);

class
Foto_upload extends file_upload {
   
    var
$x_size;
    var
$y_size;
    var
$x_max_size = 300;
    var
$y_max_size = 200;
    var
$x_max_thumb_size = 110;
    var
$y_max_thumb_size = 88;
    var
$thumb_folder;
    var
$foto_folder;
    var
$larger_dim;
    var
$larger_curr_value;
    var
$larger_dim_value;
    var
$larger_dim_thumb_value;
   
    var
$use_image_magick = true; // switch between true and false
    // I suggest to use ImageMagick on Linux/UNIX systems, it works on windows too, but it's hard to configurate
    // check your existing configuration by your web hosting provider
   
   
function process_image($landscape_only = false, $create_thumb = false, $delete_tmp_file = false, $compression = 85) {
       
$filename = $this->upload_dir.$this->file_copy;
       
$this->check_dir($this->thumb_folder); // run these checks to create not existing directories
       
$this->check_dir($this->foto_folder); // the upload dir is created during the file upload (if not already exists)
       
$thumb = $this->thumb_folder.$this->file_copy;
       
$foto = $this->foto_folder.$this->file_copy;
        if (
$landscape_only) {
           
$this->get_img_size($filename);
            if (
$this->y_size > $this->x_size) {
               
$this->img_rotate($filename, $compression);
            }
        }
       
$this->check_dimensions($filename); // check which size is longer then the max value
       
if ($this->larger_curr_value > $this->larger_dim_value) {
           
$this->thumbs($filename, $foto, $this->larger_dim_value, $compression);
        } else {
           
copy($filename, $foto);
        }
        if (
$create_thumb) {
            if (
$this->larger_curr_value > $this->larger_dim_thumb_value) {
               
$this->thumbs($filename, $thumb, $this->larger_dim_thumb_value, $compression); // finally resize the image
           
} else {
               
copy($filename, $thumb);
            }
        }
        if (
$delete_tmp_file) $this->del_temp_file($filename); // note if you delete the tmp file the check if a file exists will not work
   
}
    function
get_img_size($file) {
       
$img_size = getimagesize($file);
       
$this->x_size = $img_size[0];
       
$this->y_size = $img_size[1];
    }
    function
check_dimensions($filename) {
       
$this->get_img_size($filename);
       
$x_check = $this->x_size - $this->x_max_size;
       
$y_check = $this->y_size - $this->y_max_size;
        if (
$x_check < $y_check) {
           
$this->larger_dim = "y";
           
$this->larger_curr_value = $this->y_size;
           
$this->larger_dim_value = $this->y_max_size;
           
$this->larger_dim_thumb_value = $this->y_max_thumb_size;
        } else {
           
$this->larger_dim = "x";
           
$this->larger_curr_value = $this->x_size;
           
$this->larger_dim_value = $this->x_max_size;
           
$this->larger_dim_thumb_value = $this->x_max_thumb_size;
        }
    }
    function
img_rotate($wr_file, $comp) {
       
$new_x = $this->y_size;
       
$new_y = $this->x_size;
        if (
$this->use_image_magick) {
           
exec(sprintf("mogrify -rotate 90 -quality %d %s", $comp, $wr_file));
        } else {
           
$src_img = imagecreatefromjpeg($wr_file);
           
$rot_img = imagerotate($src_img, 90, 0);
           
$new_img = imagecreatetruecolor($new_x, $new_y);
           
imageantialias($new_img, TRUE);
           
imagecopyresampled($new_img, $rot_img, 0, 0, 0, 0, $new_x, $new_y, $new_x, $new_y);
           
imagejpeg($new_img, $this->upload_dir.$this->file_copy, $comp);
        }
    }
    function
thumbs($file_name_src, $file_name_dest, $target_size, $quality = 80) {
       
//print_r(func_get_args());
       
$size = getimagesize($file_name_src);
        if (
$this->larger_dim == "x") {
           
$w = number_format($target_size, 0, ',', '');
           
$h = number_format(($size[1]/$size[0])*$target_size,0,',','');
        } else {
           
$h = number_format($target_size, 0, ',', '');
           
$w = number_format(($size[0]/$size[1])*$target_size,0,',','');
        }
        if (
$this->use_image_magick) {
           
exec(sprintf("convert %s -resize %dx%d -quality %d %s", $file_name_src, $w, $h, $quality, $file_name_dest));
        } else {
           
$dest = imagecreatetruecolor($w, $h);
           
imageantialias($dest, TRUE);
           
$src = imagecreatefromjpeg($file_name_src);
           
imagecopyresampled($dest, $src, 0, 0, 0, 0, $w, $h, $size[0], $size[1]);
           
imagejpeg($dest, $file_name_dest, $quality);
        }
    }
}

$max_size = 1024*1024; // the max. size for uploading (~1MB)
define("MAX_SIZE", $max_size);
$foto_upload = new Foto_upload;

$foto_upload->upload_dir = $_SERVER['DOCUMENT_ROOT']."/files/"; // "files" is the folder for the uploaded files (you have to create these folder)
$foto_upload->foto_folder = $_SERVER['DOCUMENT_ROOT']."/files/photo/";
$foto_upload->thumb_folder = $_SERVER['DOCUMENT_ROOT']."/files/thumb/";
$foto_upload->extensions = array(".jpg"); // specify the allowed extension(s) here
$foto_upload->language = "en";
$foto_upload->x_max_size = 300;
$foto_upload->y_max_size = 200;
$foto_upload->x_max_thumb_size = 120;
$foto_upload->y_max_thumb_size = 150;
       
if (isset(
$_POST['Submit']) && $_POST['Submit'] == "Upload") {
   
$foto_upload->the_temp_file = $_FILES['upload']['tmp_name'];
   
$foto_upload->the_file = $_FILES['upload']['name'];
   
$foto_upload->http_error = $_FILES['upload']['error'];
   
$foto_upload->replace = (isset($_POST['replace'])) ? $_POST['replace'] : "n"; // because only a checked checkboxes is true
   
$foto_upload->do_filename_check = "n";
    if (
$foto_upload->upload()) {
       
$foto_upload->process_image(false, true, 80);
       
$foto_upload->message[] = "Processed foto: ".$foto_upload->file_copy."!"; // "file_copy is the name of the foto"
   
}
}
$error = $foto_upload->show_error_string();
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Photo-upload form</title>

<style type="text/css">
<!--
body {
    text-align:center;
}
label {
    margin:0;
    float:left;
    display:block;
    width:120px;
}
#main {
    width:350px;
    margin:0 auto;
    padding:20px 0;
    text-align:left;
}
-->
</style>
</head>
<body>
<div id="main">
  <h1>Photo-upload form</h1>
  <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" enctype="multipart/form-data">
    <input type="hidden" name="MAX_FILE_SIZE" value="<?php echo $max_size; ?>"><br>
    <div>
      <label for="upload">Select a foto</label>
    <input type="file" name="upload" id="upload" size="35"></div>
    <div>
      <label for="replace">Replace an old foto?</label>
    <input type="checkbox" name="replace" value="y"></div>
    <p style="margin-top:25px;text-align:center;"><input type="submit" name="Submit" id="Submit" value="Upload">
    </p>
  </form>
  <p><?php echo $error; ?></p>
</div>
</body>
</html>