PHP array_search() Function

Definition and Usage

The array_search() function search an array for a value and returns the key.

Syntax

array_search(value,array,strict)

Parameter	Description
value	Required. Specifies the value to search for
array	Required. Specifies the array to search in
strict	Optional. Possible values: true false - Default When set to true, the number 5 is not the same as the string 5 (See example 2)

---

Example 1

<?php
$a=array("a"=>"Dog","b"=>"Cat","c"=>"Horse");
echo array_search("Dog",$a);
?> 

 

OUTPUT :

a

---

Example 2

<?php
$a=array("a"=>"5","b"=>5,"c"=>"5");
echo array_search(5,$a,true);
?> 

 

OUTPUT :

b