PHP Classes

PHP Image cURL: Emulate getimagesize function remotely using cURL

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image-curl 2.0.3Custom (specified...5.4PHP 5, Graphics, Files and Folders, W...
Description 

Author

Mike Jordan

This class can emulate getimagesize function remotely using cURL.

It can retrieve an image file from a remote server using the cURL extension to send HTTP requests to that server.

The class implements a function as a wrapper for the PHP getimagesize method by retrieving the image file and calling getimagesize to get the image size and image type metadata of images retrieved from remote servers so it will work on PHP environments on which fopen wrappers are disabled in the PHP configuration.

Besides the original getimagesize function metadata, it also returns the image file size.

Innovation Award
PHP Programming Innovation award nominee
May 2014
Number 2

Prize: One copy of the Zend Studio		 The getimagesize function is very useful to get the dimensions of images read from local or remote files.

However, if the fopen wrappers are disabled in the current PHP configuration, getimagesize cannot get the dimensions of remote images.

This class implements an alternative solution that relies only on the cURL extension.

Manuel Lemos
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Name: Mike Jordan <contact>
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 Innovation award
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Example

<?php

include 'img_info.php';
 
$info = img_info::getimagesize( 'http://some_site.com/dir/image.jpg' );
 
if ( !$info )
   echo 'invalid image or URL';
else
   print_r( $info );

//Returns: Array ( [0] => 80 [1] => 60 [2] => 2 [3] => width="80" height="60" [bits] => 8 [channels] => 3 [mime] => image/jpeg [size] => 1954 )
 
?>

Details

App:       Image cURL
Version:   2.1.0
Author:    MT Jordan <mtjo62@gmail.com>
Copyright: 2016
License:   zlib/libpng License

**********************************************************************************

Image cURL: Image class to emulate the getimagesize() function using the cURL library

Image cURL is a class that utilizes the cURL library as a handler for HTTP requests for 
remote images where web hosts have disabled the fopen wrappers.  Additionally, the image 
filesize is returned. This class is useful when requiring metadata from remote linked images 
to check filesizes and image dimensions for publishing restrictions.

*********************************************************************************

Image cURL Features:

    * Alternate method for the getimagesize function where the fopen wrappers are disabled.

Image cURL Restrictions:

    *  Image path MUST be a fully qualified URL.
    *  Must have permissions to read/write to sys tmp dir
 
Image cURL Requirements:

    * PHP 5.4+
    * Enabled cURL extension

*********************************************************************************

  Files folder image Files (4)  
File Role Description
Plain text file img_info.php Class Image class to simulate the getimagesize function
Accessible without login Plain text file license.txt Lic. zlib/libpng License
Accessible without login Plain text file readme.txt Data Class Information
Accessible without login Plain text file test_img_info.php Example Demo script

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  Applications that use this package  
Image Filter GD is PHP class that can apply image effects filters to remotely linked images.

Add link image If you know an application of this package, send a message to the author to add a link here.


  Other classes that need this package  
Class Why it is needed Dependency
PHP Image Filter GD Required for cURL functions if fopen wrappers are disabled Conditional