PHP Image Resizer

Create bulk image thumbnails or scale to eaxct size instantly with PHP and the awesome GD library. GD library is builtin with most PHP build. To make sure, use phpinfo().

This library will create thumbnails of all images from the given directory path and store them wherever you want. You can just resize proportionally, crop to exact dimension after resizing proportionally and compress to reduce image size keeping good quality.

This library comes with default HTML resized image list.

How to use

Require the class.imageresizer.php from your file.

require_once ('class.imageresizer.php');

With options

Now pass an argument associative array with options

// Create thumbnails
$args = array(
    'height'    => 975,
    'width'     => 650,
    'is_crop_hard' => 1
);
$img = new ImageResizer($args);
$img->create();

Without options

You can just use default properties by just:

$img = new ImageResizer();
$img->create();

Single image

create() function will resize all image files from the folder. To resize only one image, use createThumbnail(). You have to pass the image filename with extension, width in pixel and height in pixel as arguments:

$args = array(
    'compress'     => 0.8,
    'is_crop_hard' => 1
);
$img = new ImageResizer($args);
$img->createThumbnail('Desires_LB_MF16_7290.jpg',300,450);

Prevent HTML resize list

To prevent the class from printing image resize list as HTML, use resize_list property:

$args = array(
    'height'    => 400,
    'width'     => 270,
    'is_crop_hard' => 1,
    'resize_list'  => false
);
$img = new ImageResizer($args);
$msg = $img->create();

// Now we can do whatever we want, maybe JSON
print_r(json_encode($msg));

Agruments

Key	Type	Value	Default
height	int/float	Thumbnail height in px	200
width	int/float	Thumbnail width in px	200
img_dir	string	Full size image directory path	'/img'
thumb_dir	string	Thumbnail image directory path (Remember to add extra backslash after. You can use file name prefix :) )	'/thumb/'
compress	int/float	Image compression (0~1, 0.15 is 15% )	0.8
is_crop_hard	boolean	Crops the image with exact height & width proportionally from the center of the image	false
resize_list	boolean	Prevents default HTML resized image list	true

Example

This is how it works:

require_once ('class.imageresizer.php');

// Create thumbnails
$args = array(
    'height'    => 975,
    'width'     => 650,
    'is_crop_hard' => 1
);
$img = new ImageResizer($args);
$img->create();

Author

Md. Hasan Shahriar

Github: https://github.com/hsleonis

Email: hsleonis2@gmail.com

2016

License

Copyright (c) 2016 Md. Hasan Shahriar Licensed under the The MIT License (MIT).