Fastest way to implode an associative array with keys

Question

I\'m looking for a fast way to turn an associative array in to a string. Typical structure would be like a URL query string but with customizable separators so I can use \'<

Answer 1

function array_to_attributes ( $array_attributes )
{

    $attributes_str = NULL;
    foreach ( $array_attributes as $attribute => $value )
    {

        $attributes_str .= " $attribute=\"$value\" ";

    }

    return $attributes_str;
}

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

echo array_to_attributes($attributes) ;

Answer 2

This is the most basic version I can think of:

public function implode_key($glue = "", $pieces = array())
{
    $keys = array_keys($pieces);
    return implode($glue, $keys);
}

Answer 3

If you're not concerned about the exact formatting however you do want something simple but without the line breaks of print_r you can also use json_encode($value) for a quick and simple formatted output. (note it works well on other data types too)

$str = json_encode($arr);
//output...
[{"id":"123","name":"Ice"},{"id":"234","name":"Cake"},{"id":"345","name":"Pie"}]

Answer 4

My solution:

$url_string = http_build_query($your_arr);
$res = urldecode($url_string); 

Answer 5

You can use http_build_query() to do that.

Generates a URL-encoded query string from the associative (or indexed) array provided.