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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Strings; |
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/** |
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* Provides static methods to work with numeric strings. |
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*/ |
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final class NumericHelper |
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{ |
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/** |
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* Converts number to its ordinal English form. For example, converts 13 to 13th, 2 to 2nd etc. |
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* |
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* @param float|int|string $value The number to get its ordinal value. |
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* |
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* @return string |
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*/ |
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public static function toOrdinal($value): string |
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{ |
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if (!is_numeric($value)) { |
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$type = gettype($value); |
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throw new \InvalidArgumentException("Value must be numeric. $type given."); |
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} |
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if (fmod((float)$value, 1) !== 0.00) { |
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return (string)$value; |
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} |
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if (\in_array($value % 100, [11, 12, 13], true)) { |
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return $value . 'th'; |
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} |
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switch ($value % 10) { |
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case 1: |
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return $value . 'st'; |
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case 2: |
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return $value . 'nd'; |
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case 3: |
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return $value . 'rd'; |
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default: |
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return $value . 'th'; |
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} |
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} |
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/** |
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* Returns string representation of a number value without thousands separators and with dot as decimal separator. |
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* |
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* @param float|int|string $value |
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* |
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* @return string |
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*/ |
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public static function normalize($value): string |
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{ |
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/** |
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* @psalm-suppress DocblockTypeContradiction |
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*/ |
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if (!is_scalar($value)) { |
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$type = gettype($value); |
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throw new \InvalidArgumentException("Value must be scalar. $type given."); |
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} |
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$value = str_replace([' ', ','], ['', '.'], (string)$value); |
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return preg_replace('/\.(?=.*\.)/', '', $value); |
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} |
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/** |
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* Checks whether the given string is an integer number. |
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*/ |
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public static function isInteger(string $value): bool |
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{ |
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return preg_match('/^-?\d+$/', $value) === 1; |
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} |
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} |
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yiisoft /
strings
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