PHP array_search() Function

Complete PHP Array Reference

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)

Example

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

The output of the code above will be:

a

Example

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

The output of the code above will be:

b

Complete PHP Array Reference
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