| 1 | <?php  | 
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| 9 | abstract class CellAlignment  | 
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| 10 | { | 
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| 11 | const LEFT = 'left';  | 
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| 12 | const RIGHT = 'right';  | 
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| 13 | const CENTER = 'center';  | 
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| 14 | const JUSTIFY = 'justify';  | 
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| 15 | |||
| 16 | private static $VALID_ALIGNMENTS = [  | 
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| 17 | self::LEFT => 1,  | 
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| 18 | self::RIGHT => 1,  | 
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| 19 | self::CENTER => 1,  | 
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| 20 | self::JUSTIFY => 1,  | 
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| 21 | ];  | 
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| 22 | |||
| 23 | /**  | 
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| 24 | * @param string $cellAlignment  | 
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| 25 | *  | 
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| 26 | * @return bool Whether the given cell alignment is valid  | 
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| 27 | */  | 
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| 28 | 4 | public static function isValid($cellAlignment)  | 
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| 32 | }  | 
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| 33 |