friendica/src/Util/Arrays.php
Roland Häder bf87ad4fcf Fixed E_NOTICE in listing worker queue and new utilities class added (#5521)
* Fixes for E_NOTICE in workqueue:
- introduced class `Friendica\Util\Arrays` which will hold static methods for
  handling arrays that cannot be done with PHP's functions, like implode() on
  multi-dimensional arrays
- rewrote old-school for() loop to foreach()

* Added intial unit test with some tests on empty delimiters and/or sinle and
multi-dim array.

* Added test for for 3-dimensional arrays, thanks to  nupplaphil's feedback.
2018-07-30 21:24:26 -04:00

50 lines
1.0 KiB
PHP

<?php
/**
* @file src/Util/Arrays.php
* @author Roland Haeder<https://f.haeder.net/profile/roland>
*/
namespace Friendica\Util;
/**
* @brief Array utility class
*/
class Arrays
{
/**
* @brief Private constructor
*/
private function __construct () {
// Utitlities don't have instances
}
/**
* @briefs Implodes recursively a multi-dimensional array where a normal implode() will fail.
*
* @param array $array Array to implode
* @param string $glue Glue for imploded elements
* @return string String with elements from array
*/
public static function recursiveImplode (array $array, $glue) {
// Init returned string
$string = '';
// Loop through all records
foreach ($array as $element) {
// Is an array found?
if (is_array($element)) {
// Invoke cursively
$string .= '{' . self::recursiveImplode($element, $glue) . '}' . $glue;
} else {
// Append normally
$string .= $element . $glue;
}
}
// Remove last glue
$string = trim($string, $glue);
// Return it
return $string;
}
}