getimagesize -Get the size of an image - PHP

array getimagesize ( string $filename [, array &$imageinfo ] )

Get the size of an image

The getimagesize() function will determine the size of any given image file and return the dimensions along with the file type and a height/width text string to be used inside a normal HTML IMG tag and the correspondant HTTP content type.


<?phplist($width, $height, $type, $attr) = getimagesize("img/flag.jpg");
echo "<img src=\"img/flag.jpg\" $attr alt=\"getimagesize() example\" />";?>

5.3.0 Added icon support. 5.2.3 Read errors generated by this function downgraded to E_NOTICE from E_WARNING. 4.3.2 Support for JPC, JP2, JPX, JB2, XBM, and WBMP became available. 4.3.2 JPEG 2000 support was added for the imageinfo parameter. 4.3.0 bits and channels are present for other image types, too. 4.3.0 mime was added. 4.3.0 Support for SWC and IFF was added. 4.2.0 Support for TIFF was added. 4.0.6 Support for BMP and PSD was added. 4.0.5 URL support was added.

VideoTutorial 22 del Curso de PHP POO

phpinfo - Outputs information about PHP's configuration

bool phpinfo ([ int $what = INFO_ALL ] )

Outputs information about PHP's configuration

Outputs a large amount of information about the current state of PHP. This includes information about PHP compilation options and extensions, the PHP version, server information and environment (if compiled as a module), the PHP environment, OS version in


<?php// Show all information, defaults to INFO_ALLphpinfo();// Show just the module information.
// phpinfo(8) yields identical results.phpinfo(INFO_MODULES);?>

INFO_GENERAL 1 The configuration line, php.ini location, build date, Web Server, System and more. INFO_CREDITS 2 PHP Credits. See also phpcredits(). INFO_CONFIGURATION 4 Current Local and Master values for PHP directives. See also ini_get(). INFO_MODULES 8 Loaded modules and their respective settings. See also get_loaded_extensions(). INFO_ENVIRONMENT 16 Environment Variable information that's also available in $_ENV. INFO_VARIABLES 32 Shows all predefined variables from EGPCS (Environment, GET, POST, Cookie, Server). INFO_LICENSE 64 PHP License information. See also the » license FAQ. INFO_ALL -1 Shows all of the above.

Beginner PHP Tutorial - 6 - The phpinfo Function

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