PHP: md5_file() function


The md5_file() function is used to calculate the md5 hash ( the hash as a 32-character hexadecimal number ) of a given file.


(PHP 4 and above)


md5_file(file_name, raw_output)


Name Description Required /
file_name The file name. Required String
raw_output Refers hex or binary output format, Returns raw 16-bit binary format if raw_output sets TRUE and return 32-bit hex format for setting FALSE (default). Optional Boolean

Return value:

Returns a string on success, FALSE otherwise.

Value Type: String.

Pictorial Presentation



$file_name = 'testvf.txt';
echo md5_file($file_name);



View the example in the browser

See also

PHP Function Reference

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PHP: Tips of the Day

PHP: How to write to the console in PHP?


On Firefox you can use an extension called FirePHP which enables the logging and dumping of information from your PHP applications to the console. This is an addon to the awesome web development extension Firebug.

  • http://www.studytrails.com/blog/using-firephp-in-firefox-to-debug-php/


However if you are using Chrome there is a PHP debugging tool called Chrome Logger or webug (webug has problems with the order of logs).

More recently Clockwork is in active development which extends the Developer Tools by adding a new panel to provide useful debugging and profiling information. It provides out of the box support for Laravel 4 and Slim 2 and support can be added via its extensible API.

Using Xdebug

A better way to debug your PHP would be via Xdebug. Most browsers provide helper extensions to help you pass the required cookie/query string to initialize the debugging process.

  • Chrome - Xdebug Helper
  • Firefox - The easiest Xdebug
  • Opera - Xdebug
  • Safari - Xdebug Toggler

Ref : https://bit.ly/3ck9rFg