note 106123 added to language.operators.bitwise
| From: | Anonymous at osu1 dot php dot net | Date: | Wed, 12 Oct 2011 14:56:00 +0000 |
| Subject: | note 106123 added to language.operators.bitwise | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-183829@lists.php.net to get a copy of this message | ||
To make very clear why ("18" & "32") is "10".
1) they they are both strings ,
2) "&" operator works on strings by taking each !Character! from each string and make
a bit wise & between them and add this value to the resulting string
So:
"18" is made up of two characters: 0x31, 0x38
"32" is made up of two characters: 0x33, 0x32
----RESULT-----
0x31 & 0x33 = 0x31 => "1"
0x38 & 0x32 = 0x30 => "0"
and the result is "10" which is 100% correct.
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