How to smooth an array to a string of values?

Question

I have an array that looks like this.

'keyvals' => array 'key1' => 'value1' 'key2' => 'value2' 'key3' => 'value3' 

Is there a cool way to smooth it down to a string like 'value1 value2 value3' ? I also have access to PHP 5.3, if there is something new.

Answer 1

 $someArray = array( 'key1' => 'value1', 'key2' => 'value2', 'key3' => 'value3' ); implode(' ', $someArray); // => "value1 value2 value3" 

Answer 2

See implode :

 $flat = implode(' ', $array['keyvals']); 

Answer 3

If you need to smooth this array to one-dimensional - take a look at this function (from Kohana fw)

 /** * Convert a multi-dimensional array into a single-dimensional array. * * $array = array('set' => array('one' => 'something'), 'two' => 'other'); * * // Flatten the array * $array = Arr::flatten($array); * * // The array will now be * array('one' => 'something', 'two' => 'other'); * * [!!] The keys of array values will be discarded. * * @param array array to flatten * @return array * @since 3.0.6 */ function flatten($array) { $flat = array(); foreach ($array as $key => $value) { if (is_array($value)) { $flat += flatten($value); } else { $flat[$key] = $value; } } return $flat; } 

but if you just want to get a string - use the native implode() function