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<?php |
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namespace Ajax\common; |
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/** |
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* Base class for enums |
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* see at http://stackoverflow.com/questions/254514/php-and-enumerations |
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* |
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* @author jc |
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* |
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*/ |
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abstract class BaseEnum { |
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private static $constCacheArray = NULL; |
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private static $picked = []; |
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public static function getConstants() { |
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if (self::$constCacheArray == NULL) { |
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self::$constCacheArray = []; |
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} |
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$calledClass = get_called_class(); |
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if (! \array_key_exists($calledClass, self::$constCacheArray)) { |
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$reflect = new \ReflectionClass($calledClass); |
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self::$constCacheArray[$calledClass] = $reflect->getConstants(); |
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} |
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return self::$constCacheArray[$calledClass]; |
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} |
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public static function getConstantValues($postFix = "", $prefixBefore = false) { |
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if ($postFix == "") |
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return \array_values(self::getConstants()); |
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else { |
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if ($prefixBefore === false) { |
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return \array_map(function ($elem) use ($postFix) { |
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return $elem . " " . $postFix; |
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}, \array_values(self::getConstants())); |
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} else { |
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return \array_map(function ($elem) use ($postFix) { |
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return $postFix . " " . $elem; |
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}, \array_values(self::getConstants())); |
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} |
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} |
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} |
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public static function isValidName($name, $strict = false) { |
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$constants = self::getConstants(); |
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if ($strict) { |
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return \array_key_exists($name, $constants); |
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} |
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$keys = \array_map('strtolower', array_keys($constants)); |
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return \in_array(\strtolower($name), $keys); |
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} |
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public static function isValidValue($value) { |
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$values = \array_values(self::getConstants()); |
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return \in_array($value, $values, true); |
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} |
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public static function getRandomValue(bool $unique = false) { |
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$values = self::getConstantValues(); |
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$count = \count($values); |
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if ($unique && $count > count(self::$picked)) { |
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do { |
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$newVal = $values[\rand(0, $count - 1)]; |
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} while (isset(self::$picked[$newVal])); |
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self::$picked[$newVal] = true; |
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return $newVal; |
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} |
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return $values[\rand(0, $count - 1)]; |
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} |
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} |
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phpMv /
phpMv-UI
