how to search a string in an array

[nirmalsingh]

i just want to verify, is an array value contain a given string or not?
for eg

<?php
$users="ravi|varman|nirmal|singh|veera|samy|";
$searchword="nirmal";
?>

i wank to return true if $users contain 'nirmal' or false.
without (for loop). i want to know if there is any inbuilt function in php for that?

[php]

try this idea

<?

$users="ravi|va rman|nirmal|sin gh|veera|samy|" ;
$searchword="ni rmal";

$arr=explode('| ',$users);
if($arr[2]=='$searchword' )
print"yes";
else"no";

?>