note 8107 added to substr
| From: | Lab at CGIComputerWares dot com | Date: | Sun, 27 Aug 2000 20:41:22 +0000 |
| Subject: | note 8107 added to substr | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-3527@lists.php.net to get a copy of this message | ||
Simple basic computer programming knowlege.
Computers work with binary numbers. Binary numbers start at zero (0).
Therefore, substr("abcdefg",0,2); // ab
Also, think of the numbers in this fastion: positive numbers left to right.
Negative numbers right to left.
http://www.php.net/manual/function.substr.php