In this article, you will learn how to search for a value in an array. The in_array method in PHP searches the specified value. If the value exists in the array, it returns true, otherwise false.

Note: If the search parameter is a string and the type parameter is set to true, the in_array function will perform a case-sensetive search.

What is the syntax of the in_array function in PHP?

in_array(search, array, type)

Parameter	Description
search	The value to search in the array – Required
array	The array to search the value in – Required
type	If the search parameter is a string and the type parameter is set to true, the in_array function will perform a case-sensetive search – Optional

Examples of the in_array function

Example 1. Search the specified value in the given array.

<?php
$members= array("Jawad", "Ahmad", "Sumerina", "ACS");

if (in_array("Ahmad", $members))
  {
  echo "Member found";
  }
else
  {
  echo "Member found";
  }
?>

Example 2. This example shows the in_array function using all the parameters.

<?php
$members= array("Jawad", "Ahmad", "Sumerina", "ACS", 39);

if (in_array("23", $members, TRUE))
  {
  echo "Element found<br>";
  }
else
  {
  echo "Element not found<br>";
  }
if (in_array("Jawad",$members, TRUE))
  {
  echo "Element found<br>";
  }
else
  {
  echo "Element not found<br>";
  }

if (in_array(23,$members, TRUE))
  {
  echo "Match found<br>";
  }
else
  {
  echo "Match not found<br>";
  }
?>