note 111314 rejected from function.array-uintersect by danbrown
| From: | danbrown@php.net | Date: | Tue, 05 Mar 2013 16:13:43 +0000 |
| Subject: | note 111314 rejected from function.array-uintersect by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-193937@lists.php.net to get a copy of this message | ||
Note Submitter: hermes dot m dot garcia at gmail dot com
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Why does the user function must return three values (0, 1, -1) instead of just two?
This is necesary for the correct execution of array_uintersect, as this function first ORDERS the
arrays before comparing in search of the intersection. Therefore the user function is called a
different amount of times one would expect.