hashes.com: Hashes Warning: include(../lib/hashes_header.php3): failed to open stream: No such file or directory in /hsphere/local/home/djackson/hashes.com/misc/hashes_def.php on line 13 Warning: include(../lib/hashes_header.php3): failed to open stream: No such file or directory in /hsphere/local/home/djackson/hashes.com/misc/hashes_def.php on line 13 Warning: include(../lib/hashes_header.php3): failed to open stream: No such file or directory in /hsphere/local/home/djackson/hashes.com/misc/hashes_def.php on line 13 Warning: include(): Failed opening '../lib/hashes_header.php3' for inclusion (include_path='.:/hsphere/shared/apache/libexec/php5ext/php/') in /hsphere/local/home/djackson/hashes.com/misc/hashes_def.php on line 13 Warning: include(../lib/navColumn.php3): failed to open stream: No such file or directory in /hsphere/local/home/djackson/hashes.com/misc/hashes_def.php on line 16 Warning: include(../lib/navColumn.php3): failed to open stream: No such file or directory in /hsphere/local/home/djackson/hashes.com/misc/hashes_def.php on line 16 Warning: include(../lib/navColumn.php3): failed to open stream: No such file or directory in /hsphere/local/home/djackson/hashes.com/misc/hashes_def.php on line 16 Warning: include(): Failed opening '../lib/navColumn.php3' for inclusion (include_path='.:/hsphere/shared/apache/libexec/php5ext/php/') in /hsphere/local/home/djackson/hashes.com/misc/hashes_def.php on line 16

What's a Hash?

A hash by any other name is still a hash.
                                      { "anon", "Perl" } 


A hash (or "associative array") is a special type of array in which data ("values") are indexed by strings ("keys"), rather than by the usual numbers (0, 1, 2, etc.). Hashes are easy to learn and use -- well worth adding to your repertoire even if you are a relatively new programmer.

Perl, PHP, and JavaScript all support hashes, but only in Perl is that readily apparent in standard literature:

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