Re: checking for duplicate values among five variables
| From: | tedd | Date: | Sat, 07 Jul 2007 14:08:34 +0000 |
| Subject: | Re: checking for duplicate values among five variables | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-258459@lists.php.net to get a copy of this message | ||
At 9:51 PM -0500 7/6/07, Kenn Murrah wrote:
Can anyone help me with a way to determine of two or more variables have the same value? For instance, $a1 = 1000 $a2 = 2000 $a3 = 2000 $a4 = 4000 $a5 = 5000 I want check these five variables and determine whether, as in this case, two or more of the variables have the same value. Any suggestions how I can do this? Thanks in advance. kennkenn: You could use an array. $a = array(1000, 2000, 2000, 4000, 5000); $num_before = count($a); $num_after = count(array_unique($a)); If two, or more, variables have the same value, variables $num_before and $num_after will be different. Cheers, tedd -- ------- http://sperling.com http://ancientstones.com http://earthstones.com