function int2vancode
int2vancode($i = 0)
Generate vancode.
Consists of a leading character indicating length, followed by N digits with a numerical value in base 36. Vancodes can be sorted as strings without messing up numerical order.
It goes: 00, 01, 02, ..., 0y, 0z, 110, 111, ... , 1zy, 1zz, 2100, 2101, ..., 2zzy, 2zzz, 31000, 31001, ...
File
- modules/comment/comment.module, line 2504
- Enables users to comment on published content.
Code
function int2vancode($i = 0) { $num = base_convert((int) $i, 10, 36); $length = strlen($num); return chr($length + ord('0') - 1) . $num; }
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https://api.drupal.org/api/drupal/modules!comment!comment.module/function/int2vancode/7.x