RE: [PHP] Arrays as pointers?
| From: | Martin Towell | Date: | Thu, 24 Jan 2002 22:23:41 +0000 |
| Subject: | RE: [PHP] Arrays as pointers? | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-81986@lists.php.net to get a copy of this message | ||
it's treating a string as a character array - it's documented somewhere in
the manual, can't remember where though :( - not long ago someone was
saying that the new way it to use curly-brackets, but square brackets still
work for backwark compatibility.
-----Original Message-----
From: v0idnull [mailto:v0idnull@liquidgrin.com]
Sent: Friday, January 25, 2002 8:57 AM
To: PHP List
Subject: [PHP] Arrays as pointers?
A friend of mine showed me this code recently.
function firstLogin_string() {
mt_srand(make_seed());
$pool = "AaBbCcDdEeFfGgHhIiJjKkLlM";
$length = 26;
for($i=0; $i < $length; $i++) {
$key .= $pool[mt_rand(0,strlen($pool)-1)];
}
return $key;
}
look at the for loop. $pool is not an array but is being treated as such and
the key happens to be the position in $pool and it'll take that letter and
save it to $key. I've never seen this done before. What is this method
called and what other neat tricks can you do in respect to this?
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