Fastest way to implode an associative array with keys

/********************************************************************************/
/* TITLE : Fastest way to implode an associative array with keys
/* DESCRIPTION : To Get the details fastest way to implode an associative array with keys
/* CREATED BY   : Jemiris Selvi S
/* CREATED ON : 11-July-2017
/* MODIFIED BY : Jemiris Selvi S
/* MODIFIED ON : 11-july-2017
/********************************************************************************/
<?php

$attributes = array(
    'data-href'   => 'http://example.com',
    'data-width'  => '300',
    'data-height' => '250',
    'data-type'   => 'cover',
);

$dataAttributes = array_map(function($value, $key) {
    return $key.'="'.$value.'"';
}, array_values($attributes), array_keys($attributes));

$dataAttributes = implode(' ', $dataAttributes);

?>

<div class="image-box" <?= $dataAttributes; ?> >
    <img src="http://example.com/images/best-of.jpg" alt="">
</div>
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