what is use of in_array() function in php
The in_array() function is an inbuilt function in PHP. The in_array() function is used to check whether a given value exists in an array or not. It returns TRUE if the given value is found in the given array, and FALSE otherwise. <?php $people = array("Peter", "Joe", "Glenn", "Cleveland"); if (in_array("Glenn", $people)) { echo "Match found"; } else { echo "Match not found"; } ?>