in_array Function


The in_array() function searches an array for a specific value.

Note: If the search parameter is a string and the type parameter is set to TRUE, the search is case-sensitive.

Syntax :

 in_array(search,array,type)

search - Required. Specifies the what to search for
array  -  Required. Specifies the array to search
type   -  Optional. If this parameter is set to TRUE, the in_array() function searches for the search-string and specific type in the array.

Return Value  -  Returns TRUE if the value is found in the array, or FALSE otherwise.



Example : 

       <?php
$people = array("Peter", "Joe", "Glenn", "Cleveland", 23);

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

if (in_array("Glenn",$people, TRUE))
  {
                echo "Match found<br>";
  }
else
  {
  echo "Match not found<br>";
  }

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

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