manuwhat /
similar-text
| Conditions | 5 |
| Paths | 3 |
| Total Lines | 15 |
| Code Lines | 11 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 0 | ||
| 1 | <?php |
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| 17 | public static function hamming($a, $b) |
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| 18 | { |
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| 19 | if (!is_string($a) || !is_string($b) || (strlen($a) !== strlen($b))) { |
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| 20 | return false; |
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| 21 | } |
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| 22 | static $distance = 0; |
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| 23 | static $previous = array(); |
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| 24 | if (array($a, $b) === $previous) { |
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| 25 | return $distance; |
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| 26 | } |
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| 27 | $previous = array($a, $b); |
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| 28 | $a = self::split($a); |
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| 29 | $b = self::split($b); |
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| 30 | $distance = count(array_diff_assoc((array) $a, (array) $b)); |
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| 31 | return $distance; |
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| 32 | } |
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| 37 |
