What is PhpDig?
PhpDig is a PHP MySQL based
Web Spider & Search Engine.



getimagesize — Determines image size and properties. The returned array contains image-size information in various formats.


array getimagesize(filename[, info]);
string filename: Path and filename of image file
array info (optional): Array passed by reference


Four-element array of image information or FALSE on error


This function does not require the GD library, but is included here because it's the only image-manipulation function that doesn't. The returned result is a four-element array. Elements 0 and 1 are the numerical width and height of the image in pixels, respectively. Element 2 contains the type of the image (see below). Element 3 contains a text string suitable for inclusion in an <IMG> tag to indicate the size of the image. The type of the image is an integer value from 1 to 4: 1 indicates a GIF image, 2 indicates a JPEG image, 3 indicates a PNG image, and 4 indicates a Flash SWF file. Other file types are not currently supported by PHP.

You can also pass an optional array to the function, which must be passed by reference. This can be used to obtain additional information about the image. This is an associative array that currently supports only JPG APP markers. Using the iptcparse() function, this information can be extracted and displayed.


The ability to open an image via a URL was added in version 4.0.5


Example 387. Display image size

$filename = "header.gif";
$imgsize = getimagesize($filename);
echo "<IMG SRC=\"$filename\" $imgsize[3]>";

Example 388. Display image information

$size = getimagesize("test_image.jpg", &$info);
foreach ($info as $key=>$val) {
    echo "$key => $val<P>\n";

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2005, Jelsoft Enterprises Ltd.
Copyright © 2001 - 2005, ThinkDing LLC. All Rights Reserved.