mhash_count
    (PHP 3 >= 3.0.9, PHP 4, PHP 5)
mhash_count -- Get the highest available hash id
Description
int 
mhash_count ( void  )
     mhash_count() returns the highest available hash
     id. Hashes are numbered from 0 to this hash id.
    
     
Example 1. Traversing all hashes 
<?php
  $nr = mhash_count();
  for ($i = 0; $i <= $nr; $i++) {     echo sprintf("The blocksize of %s is %d\n",          mhash_get_hash_name($i),         mhash_get_block_size($i)); } ?>
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