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<?php |
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class HelperArray { |
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const ARRAY_REPLACE = 0; |
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const ARRAY_MERGE = 1; |
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/** |
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* Convert $delimiter delimited string to array |
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* |
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* @param mixed $string |
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* @param string $delimiter |
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* |
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* @return array |
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*/ |
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public static function stringToArray($string, $delimiter = ',') { |
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return is_string($string) && !empty($string) ? explode($delimiter, $string) : array(); |
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} |
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/** |
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* Convert single value to array by reference |
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* |
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* @param mixed &$value |
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*/ |
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public static function makeArrayRef(&$value, $index = 0) { |
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!is_array($value) ? $value = array($index => $value) : false; |
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} |
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/** |
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* Convert single value to array |
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* |
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* @param mixed $value |
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* |
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* @return array |
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*/ |
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public static function makeArray($value, $index = 0) { |
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static::makeArrayRef($value, $index); |
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return $value; |
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} |
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/** |
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* Filters array by callback |
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* |
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* @param mixed $array |
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* @param callable $callback |
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* |
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* @return array |
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*/ |
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public static function filter(&$array, $callback) { |
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$result = array(); |
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if (is_array($array) && !empty($array)) { |
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foreach ($array as $value) { |
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if (call_user_func($callback, $value)) { |
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$result[] = $value; |
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} |
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} |
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} |
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return $result; |
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} |
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/** |
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* Filter empty() values from array |
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* |
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* @param $array |
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* |
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* @return array |
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*/ |
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public static function filterEmpty($array) { |
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return static::filter($array, 'Validators::isNotEmpty'); |
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} |
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/** |
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* @param string $string |
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* @param string $delimiter |
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* |
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* @return array |
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*/ |
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public static function stringToArrayFilterEmpty($string, $delimiter = ',') { |
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return static::filterEmpty(static::stringToArray($string, $delimiter)); |
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} |
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/** |
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* @param mixed|array &$arrayOld |
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* @param mixed|array $arrayNew |
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* @param int $mergeStrategy - default is HelperArray::ARRAY_REPLACE |
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*/ |
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public static function merge(&$arrayOld, $arrayNew = array(), $mergeStrategy = HelperArray::ARRAY_REPLACE) { |
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if (!is_array($arrayOld)) { |
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$arrayOld = array($arrayOld); |
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} |
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static::makeArrayRef($arrayNew); |
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switch ($mergeStrategy) { |
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case HelperArray::ARRAY_MERGE: |
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$arrayOld = array_merge($arrayOld, $arrayNew); |
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break; |
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default: |
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$arrayOld = $arrayNew; |
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break; |
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} |
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} |
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} |
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