Function resizeImage
/**
*
* @param type $width
* @param type $height
* @param type $mode
* @param type $imageName
* @param type $extension
* @return string
*/
function resizeImage($width, $height, $mode, $imageName,$extension) {
$docRoot = getenv("DOCUMENT_ROOT");
/* Get original image x y */
$tmpNM = $_FILES['files']['tmp_name'];
list($w, $h) = getimagesize($_FILES['files']['tmp_name']);
/* calculate new image size with ratio */
$ratio = max($width / $w, $height / $h);
$h = ceil($height / $ratio);
$x = ($w - $width / $ratio) / 2;
$w = ceil($width / $ratio);
/* new file name */
if ($mode == 'userphoto') {
$path = $docRoot . '/upload/userphoto/' . $imageName;
}
/* read binary data from image file */
$imgString = file_get_contents($_FILES['files']['tmp_name']);
/* create image from string */
$image = imagecreatefromstring($imgString);
$tmp = imagecreatetruecolor($width, $height);
imagecopyresampled($tmp, $image, 0, 0, $x, 0, $width, $height, $w, $h);
$fileTypes = array('jpg', 'jpeg', 'jpe', 'png', 'bmp', 'gif'); // File extensions
/* Save image */
$extension = strtolower($extension);
switch ($extension) {
case 'jpg':
case 'jpeg':
case 'jpe':
imagejpeg($tmp, $path, 100);
break;
case 'png':
imagepng($tmp, $path,0);
break;
case 'gif':
imagegif($tmp, $path, 100);
break;
case 'bmp':
imagewbmp($tmp, $path);
break;
default:
exit;
break;
}
return $path;
/* cleanup memory */
imagedestroy($image);
imagedestroy($tmp);
}
How to use Code
HTML Code
<form action="upload.php" enctype="multipart/form-data" method="post"> <input id="image upload" name="files" type="file" /> <input name="submit" type="submit" value="Upload Image" />
PHP Code
//List of thumbnails
$sizes = array(200 => 200, 150 => 150);
$files=array();
if (!empty($_FILES)) {
//Clean the image name
$_FILES['files']['name'] = preg_replace('/[^a-zA-Z0-9_.-]/', '', strtolower(trim($_FILES['files']['name'])));
//Temporary file, type, name
$tmpNM = $_FILES['files']['tmp_name'];
$imageType = $_FILES['files']['type'];
$imageName = $_FILES['files']['name'];
//Get image extension
$imageNameType = explode(".", $_FILES['files']['name']);
//Type of images support for uploading
$fileMimeTypes = array('image/jpeg', 'image/png', 'image/bmp', 'image/gif'); // mime extensions
$fileTypes = array('jpg', 'jpeg', 'jpe', 'png', 'bmp', 'gif'); // File extensions
if (in_array(strtolower($imageNameType[1]), $fileTypes)) {
$fullImageName = time('his') . '_' . $_FILES['files']['name'];
foreach ($sizes as $w => $h) {
$files[] = $this->resizeImage($w, $h, 'userphoto', "{$w}_{$fullImageName}", $imageNameType[1]);
}
}
}
