thumbnail function

greengo · November 14, 2007

hi,

I'm trying to make an application that makes thumbnails but I can't make it work and i doesn't give me any error in return not even in the log file. Can anyone help me?

thank

<?php

function createThumbs( $pathToImages, $pathToThumbs, $thumbWidth )

{

// open the directory

$dir = opendir( $pathToImages );

// loop through it, looking for any/all JPG files:

while (false !== ($fname = readdir( $dir )))

{

// parse path for the extension

$info = pathinfo("$pathToImage/$fname");

// continue only if this is a JPEG image

if ($info['extension'] == 'jpg')

{

// load image and get image size

$img = @imageCreateFromJPEG( "$pathToImages/$fname" )

or die ("Cannot Initialize new GD image stream1");

$width = ImageSX($img);

$height = ImageSY( $img );

// calculate thumbnail size

$new_width = $thumbWidth;

$new_height = floor( $height * ( "$thumbWidth/$width" ) );

// create a new temporary image

$tmp_img = @ImageCreateTrueColor( $new_width, $new_height )

or die("Cannot Initialize new GD image stream2");

// copy and resize old image into new image

imagecopyresized( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );

// save thumbnail into a file

imagejpeg( $tmp_img, "$pathToThumbs/$fname" );

}

// close the directory

closedir( $dir );

}

// call createThumb function and pass to it as parameters the path

// to the directory that contains images, the path to the directory

// in which thumbnails will be placed and the thumbnail's width.

// We are assuming that the path will be a relative path working

// both in the filesystem, and through the web for links

createThumbs('photo','photo/thumbs',100);

function createGallery( $pathToImages, $pathToThumbs )

{

//echo "Creating photo_fulvio.html <br />";

$output = "<html>";

$output .= "<head><title>PHOTO_FULVIO</title></head>";

$output .= "<body>";

$output .= "<table width='500' border='0' align='center'>";

$output .= "<tr>";

$output .= "<td><div align='center'>";

$output .= "<h2><font color='#99CC00' face='Arial, Helvetica, sans-serif'><strong>FULVIO'S PHOTO</strong></font></h2>";

$output .= "</div></td>";

$output .= "</tr>";

$output .= "</table>";

$output .= "<table width='500' align='center' border='1'>";

$output .= "<tr>";

// open the directory

$dir = opendir( $pathToThumbs );

$counter = 0;

// loop through the directory

while (false !== ($fname = readdir($dir)))

{

// strip the . and .. entries out

if ($fname != '.' && $fname != '..')

{

$output .= "<td align='center' align='center' valign='bottom'><a href='$pathToImages/$fname'>";

$output .= "<img src='$pathToThumbs/$fname' border='0'><br><font color='black' face='Arial, Helvetica, sans-serif' size='2'>$fname</font>";

$output .= "</a></td>";

$counter += 1;

if ( $counter % 4 == 0 ) { $output .= "</tr><tr>"; }

}

// close the directory

closedir( $dir );

$output .= "</tr>";

$output .= "</table>";

$output .= "</body>";

$output .= "</html>";

// open the file

$fhandle = fopen( "photo_fulvio.php", "w" );

// write the contents of the $output variable to the file

fwrite( $fhandle, $output );

// close the file

fclose( $fhandle );

}

// call createGallery function and pass to it as parameters the path

// to the directory that contains images and the path to the directory

// in which thumbnails will be placed. We are assuming that

// the path will be a relative path working

// both in the filesystem, and through the web for links

createGallery("photo","photo/thumbs/");

//redirect to the created page

header( 'Location: http://localhost/greengo/fulvio/photo_fulvio.php') ;

?>

jvrothjr · November 14, 2007

Here is a file I use to upload and convert jpg to thumbnails.

<?php
if ($submit){
/* Add backslashes before characters that need to be quoted in database queries etc.
   These characters are single quote ('), double quote ("), backslash (\) and NUL (the NULL byte). */
$data = addslashes(fread(fopen($form_data, "r"), filesize($form_data)));
//set the picture id a unix timestamp. I thought this will not have repeatations. You can keep anything what you like
// Add random number to time stamp to get ID Number
// Get file extention
$upload_dir="store/";   //Source File path
$thumbnail_path="store/Thumb/"; //Thumdnail File Path
$ext = substr($form_data_name,strlen($form_data_name)-3);
$ext = strtolower($ext);
// Verify file extention as supported formats
if ($ext == "jpg") {
if (move_uploaded_file($form_data,$upload_dir.$form_data_name))
        thumb_jpeg($form_data_name,$upload_dir,$thumbnail_path);
        $datatn = addslashes(fread(fopen($thumbnail_path.$form_data_name, "r"), filesize($thumbnail_path.$form_data_name)));
}
}
echo "<form method='post' action='$PHP_SELF'>";
echo "<table width='100%' border='0' cellspacing='0' cellpadding='0'>";
echo "<tr><td>File to upload:</td><td><input type='file' name='form_data' size='64'></td></tr>";
echo "</table>";
echo "<input type='submit' name='submit' value='submit'>";
echo "</form>";

function thumb_jpeg($image_name,$source_path,$destination_path){
//Create Thumbnail
    $new_width=150;  //Image width Change if needed
    $new_height=150;  //Image height Change if needed
    $destimg=ImageCreate($new_width,$new_height) or die("Problem In Creating image");
    $srcimg=ImageCreateFromjpeg($source_path.$image_name) or die("Problem In opening Source Image");
    ImageCopyResized($destimg,$srcimg,0,0,0,0,$new_width,$new_height,ImageSX($srcimg),ImageSY($srcimg)) or die("Problem In resizing");
    Imagejpeg($destimg,$destination_path.$image_name) or die("Problem In saving");
}
?>

greengo · November 14, 2007

thanks I'll study it

Sign In

thumbnail function

Recommended Posts

greengo

Link to comment

Share on other sites

jvrothjr

Link to comment

Share on other sites

greengo

Link to comment

Share on other sites

Join the conversation

Browse

Activity

Important Information