mcrypt_list_modes
    (PHP 4 >= 4.0.2)
mcrypt_list_modes -- Get an array of all supported modes
Description
array 
mcrypt_list_modes ( [string lib_dir])
     mcrypt_list_modes() is used to get an      array of all supported modes in the      lib_dir.     
     mcrypt_list_modes() takes as optional      parameter a directory which specifies the directory where all      modes are located. If not specifies, the value of the      mcrypt.modes_dir php.ini directive is used.     
     
| Example 1. mcrypt_list_modes() Example | <?php
    $modes = mcrypt_list_modes ();
    foreach ($modes as $mode) {
        echo "$mode <br />\n";
    }
 ?> | 
 
       The above example will produce a list with all supported        algorithms in the default mode directory. If it is not set        with the ini directive mcrypt.modes_dir, the default directory        of mcrypt is used (which is /usr/local/lib/libmcrypt).        |