PHP array_search() function

This function searches a value in an array and returns its key.

Syntax

array_search('value', array_name)

value is the searched value and array_name is the array in which search will perform. It returns the key of the searched value, otherwise returns FALSE.

Example1

<?php
    $arr = array("car", "bus", "truck");
    $key = array_search("truck", $arr);
    echo $key;
?>		

Output :

2

Example2

<?php
    $arr = array("11", "10", "12", "44", "13", "50", "23");
    $key = array_search("12", $arr);
    echo $key;
?>		

Output :

5

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