Frequency of values inside an array

We can count the number of time elements are present inside an array by using array_count_values function in php. This function returns another array which stores the values ( or elements ) of the input array and its frequency or the number of occurrence of the value.

This function array_count_values works similar to group by sql query where we collect unique records with number of occurrence in a table

Here is the syntax of this function.

$result= array_count_values ($input_array)
Let us try one example to understand how this works.

$a1=array("first", "second", "third","fourth","fifth","second","third");
$new_array=array_count_values($a1);

while (list ($key, $val) = each ($new_array)) {
echo "$key -> $val <br>";
}
The output of above code will be

first -> 1
second -> 2
third -> 2
fourth -> 1
fifth -> 1

Subscribe to our mailing list

* indicates required
Subscribe to plus2net
Your Rating


Google+

periyasamy

01-01-2010

Hi Friends,...i am new to php,..i have problem taking list box value.While loop i have 5 select box, need to pass whole value into single submissio n ,..how to pass,,please help me thanks periyasamy

Post Comment This is for short comments only. Use the forum for more discussions.




Subscribe to our mailing list

* indicates required
Subscribe to plus2net
HTML . MySQL. PHP. JavaScript. ASP. Photoshop. Articles. FORUM Contact us
©2000-2017 plus2net.com All rights reserved worldwide Privacy Policy Disclaimer