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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Strings; |
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use InvalidArgumentException; |
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use function in_array; |
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use function is_bool; |
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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 bool|float|int|string $value |
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* |
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* @throws InvalidArgumentException if value is not scalar. |
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* |
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* @return string |
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*/ |
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public static function normalize($value): string |
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{ |
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/** @psalm-suppress DocblockTypeContradiction */ |
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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. $type given."); |
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} |
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if (is_bool($value)) { |
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$value = $value ? '1' : '0'; |
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} else { |
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$value = (string)$value; |
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} |
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$value = str_replace([' ', ','], ['', '.'], $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 value is an integer number. |
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* |
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* @param mixed $value |
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* |
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* @return bool |
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*/ |
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public static function isInteger($value): bool |
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{ |
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return filter_var($value, FILTER_VALIDATE_INT) !== false; |
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} |
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/** |
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* Checks whether the given string is a positive integer number. |
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* |
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* @param string $string |
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* |
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* @return bool |
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*/ |
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7 |
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public static function isPositiveInteger(string $string): bool |
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{ |
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// Exclude strings like "+5" |
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if (!preg_match('/^\d+$/', $string)) { |
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return false; |
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} |
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2 |
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return filter_var($string, FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]) !== false; |
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} |
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} |
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yiisoft /
strings
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