Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php  | 
            ||
| 10 | class ChamiloApi  | 
            ||
| 11 | { | 
            ||
| 12 | private static $configuration;  | 
            ||
| 13 | |||
| 14 | /**  | 
            ||
| 15 | * ChamiloApi constructor.  | 
            ||
| 16 | * @param $configuration  | 
            ||
| 17 | */  | 
            ||
| 18 | public function __construct(array $configuration)  | 
            ||
| 22 | |||
| 23 | /**  | 
            ||
| 24 | * @return array  | 
            ||
| 25 | */  | 
            ||
| 26 | public static function getConfigurationArray()  | 
            ||
| 30 | |||
| 31 | /**  | 
            ||
| 32 | * @param string $variable  | 
            ||
| 33 | * @return bool|string  | 
            ||
| 34 | */  | 
            ||
| 35 | public static function getConfigurationValue($variable)  | 
            ||
| 44 | |||
| 45 | |||
| 46 | /**  | 
            ||
| 47 | * Returns an array of resolutions that can be used for the conversion of documents to images  | 
            ||
| 48 | * @return array  | 
            ||
| 49 | */  | 
            ||
| 50 | public static function getDocumentConversionSizes()  | 
            ||
| 65 | |||
| 66 | /**  | 
            ||
| 67 | * Get the platform logo path  | 
            ||
| 68 | * @return null|string  | 
            ||
| 69 | */  | 
            ||
| 70 | public static function getWebPlatformLogoPath()  | 
            ||
| 88 | |||
| 89 | /**  | 
            ||
| 90 | * Get the platform logo.  | 
            ||
| 91 | * Return a <img> if the logo image exists. Otherwise return a <h2> with the institution name.  | 
            ||
| 92 | * @param array $imageAttributes Optional.  | 
            ||
| 93 | * @return string  | 
            ||
| 94 | */  | 
            ||
| 95 | public static function getPlatformLogo($imageAttributes = [])  | 
            ||
| 132 | |||
| 133 | /**  | 
            ||
| 134 | * Like strip_tags(), but leaves an additional space and removes only the given tags  | 
            ||
| 135 | * @param string $string  | 
            ||
| 136 | * @param array $tags Tags to be removed  | 
            ||
| 137 | * @return string The original string without the given tags  | 
            ||
| 138 | */  | 
            ||
| 139 | View Code Duplication | public static function stripGivenTags($string, $tags)  | 
            |
| 140 |     { | 
            ||
| 141 |         foreach ($tags as $tag) { | 
            ||
| 142 |             $string2 = preg_replace('#</' . $tag . '[^>]*>#i', ' ', $string); | 
            ||
| 143 |             if ($string2 != $string) { | 
            ||
| 144 |                 $string = preg_replace('/<' . $tag . '[^>]*>/i', ' ', $string2); | 
            ||
| 145 | }  | 
            ||
| 146 | }  | 
            ||
| 147 | return $string;  | 
            ||
| 148 | }  | 
            ||
| 149 | /**  | 
            ||
| 150 | * Adds or Subtract a time in hh:mm:ss to a datetime  | 
            ||
| 151 | * @param string $time Time in hh:mm:ss format  | 
            ||
| 152 | * @param string $datetime Datetime as accepted by the Datetime class constructor  | 
            ||
| 153 | * @param bool $operation True for Add, False to Subtract  | 
            ||
| 154 | * @return string  | 
            ||
| 155 | */  | 
            ||
| 156 | public static function addOrSubTimeToDateTime($time, $datetime = 'now', $operation = true)  | 
            ||
| 175 | }  | 
            ||
| 176 |