php array function

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PHP array functions

1. array_flip() reverses all keys in the array and their associated values

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

Output results:

Array ( [red] => a [green] => b [blue] => c [yellow] => d )

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