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PHP array_flip() Function

PHP Array Reference PHP Array Reference

Example

Flip all keys with their associated values in an array:

<?php
$a1=array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
$result=array_flip($a1);
print_r($result);
?>

Run example »

Definition and Usage

The array_flip() function flips/exchanges all keys with their associated values in an array.


Syntax

array_flip(array);

Parameter Description
array Required. Specifies an array of key/value pairs to be flipped

Technical Details

Return Value: Returns the flipped array on success. NULL on failure
PHP Version: 4+

PHP Array Reference PHP Array Reference

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