sha1(3) [php man page]

SHA1(3) 								 1								   SHA1(3)

sha1 - Calculate the sha1 hash of a string

SYNOPSIS

       string sha1 (string  $str, [bool  $raw_output = false])

DESCRIPTION

	Calculates the sha1 hash of $str using the US Secure Hash Algorithm 1.

PARAMETERS

	      o $str
		- The input string.

	      o $raw_output
		-  If  the optional $raw_output is set to TRUE, then the sha1 digest is instead returned in raw binary format with a length of 20,
		otherwise the returned value is a 40-character hexadecimal number.

RETURN VALUES

	Returns the sha1 hash as a string.

EXAMPLES

       Example #1

	      A sha1(3) example

	      <?php
	      $str = 'apple';

	      if (sha1($str) === 'd0be2dc421be4fcd0172e5afceea3970e2f3d940') {
		  echo "Would you like a green or red apple?";
	      }
	      ?>

NOTES

       Note

	      Secure password hashing

	       It is not recommended to use this function to secure passwords, due to the fast nature of this  hashing	algorithm.  See  here  for
	      details.

SEE ALSO

       sha1_file(3), crc32(3), md5(3), hash(3), crypt(3), password_hash(3).

PHP Documentation Group 														   SHA1(3)

MD5_FILE(3)								 1							       MD5_FILE(3)

md5_file - Calculates the md5 hash of a given file

SYNOPSIS

       string md5_file (string	$filename, [bool  $raw_output = false])

DESCRIPTION

	Calculates  the  MD5 hash of the file specified by the $filename parameter using the RSA Data Security, Inc. MD5 Message-Digest Algorithm,
       and returns that hash. The hash is a 32-character hexadecimal number.

PARAMETERS

	      o $filename
		- The filename

	      o $raw_output
		- When TRUE, returns the digest in raw binary format with a length of 16.

RETURN VALUES

	Returns a string on success, FALSE otherwise.

CHANGELOG

       +--------+---------------------------------------------------+
       |Version |						    |
       |	|						    |
       |	|		     Description		    |
       |	|						    |
       +--------+---------------------------------------------------+
       | 5.1.0	|						    |
       |	|						    |
       |	|  Changed the function to use the streams API.  It |
       |	| means  that  you  can  use it with wrappers, like |
       |	| md5_file('http://example.com/..')		    |
       |	|						    |
       +--------+---------------------------------------------------+
EXAMPLES

       Example #1

	      Usage example of md5_file(3)

	      <?php
	      $file = 'php-5.3.0alpha2-Win32-VC9-x64.zip';

	      echo 'MD5 file hash of ' . $file . ': ' . md5_file($file);
	      ?>

SEE ALSO

       md5(3), sha1_file(3), crc32(3).

PHP Documentation Group 													       MD5_FILE(3)