36 lines
1.0 KiB
PHP
36 lines
1.0 KiB
PHP
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<?php
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namespace PhpOffice\PhpWord\Shared;
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abstract class AbstractEnum
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{
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private static $constCacheArray = null;
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private static function getConstants()
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{
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if (self::$constCacheArray == null) {
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self::$constCacheArray = array();
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}
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$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[$calledClass];
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}
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public static function values()
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{
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return array_values(self::getConstants());
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}
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public static function validate($value)
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{
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$values = array_values(self::getConstants());
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if (!in_array($value, $values, true)) {
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$calledClass = get_called_class();
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throw new \InvalidArgumentException("$value is not a valid value for $calledClass, possible values are " . implode(', ', $values));
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}
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}
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}
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