note 104912 added to function.rand
| From: | oxiroxtatgmaildotcom at osu1 dot php dot net | Date: | Fri, 15 Jul 2011 06:37:56 +0000 |
| Subject: | note 104912 added to function.rand | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-181547@lists.php.net to get a copy of this message | ||
Based on adam at greatbigmassive dot com 02-Dec-2008 01:10 's use of preg_replace with eval
idea
This one-liner will generate a random string consisting of a-Z0-9, of as many characters long as
printable characters you put in the 3th parameter of preg_replace:
//This will return a 20 character long alphanumeric random string like:
"v6Q0tdgI8lq4Fd0P8Pp4"
preg_replace("/./e",
"chr(array_rand(array_flip(array(rand(65,90),rand(97,122),rand(48,57))),1))",
"....................");
Note: str_repeat won't work as it will only evaluate the random character once. If you know of
a more simple alternative in the sorts of str_repeat, please email me and let me know, thanks!
Regards,
oxi
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Manual Page -- http://www.php.net/manual/en/function.rand.php
Edit -- https://master.php.net/note/edit/104912
Del: integrated -- https://master.php.net/note/delete/104912/integrated
Del: useless -- https://master.php.net/note/delete/104912/useless
Del: bad code -- https://master.php.net/note/delete/104912/bad+code
Del: spam -- https://master.php.net/note/delete/104912/spam
Del: non-english -- https://master.php.net/note/delete/104912/non-english
Del: in docs -- https://master.php.net/note/delete/104912/in+docs
Del: other reasons-- https://master.php.net/note/delete/104912
Reject -- https://master.php.net/note/reject/104912
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