PHP in_array() Function

PHP in_array() Function

The in_array() function in PHP checks if the value exists in the specified array or not.

Syntax

in_array ( mixed $needle , array $haystack [, bool $strict = FALSE ] )

Parameter

needle(required)- This parameter represents the searched value.

haystack(required)- This parameter represents the input array.

strict(optional)- This parameter searches for the search-string; if it is set to the Boolean value TRUE, then it will also the types of the array.

Return

This function returns a Boolean value TRUE if the parameter “needle” is found in the array else it returns FALSE.

Example 1

Output

Hello Reema! Welcome to TutorialandExample.

Example 2

Output

CASE 1: Without Strict Check
'112.4' found without strict check
CASE 2: Strict Check 
'112.4' is not found with strict check

Example 3

Output

Array
 (
     [0] => Reema
     [1] => Varun
     [2] => Ginni
     [3] => Sukla
     [4] => 23
 ) 
 23 is not found in the array
 Reema is found in the array

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