| Conditions | 3 |
| Paths | 4 |
| Total Lines | 18 |
| Code Lines | 11 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 0 | ||
| 1 | <?php |
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| 23 | public function encode($text) |
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| 24 | { |
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| 25 | $block_size = PKCS7Encoder::$block_size; |
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| 26 | $text_length = strlen($text); |
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| 27 | //计算需要填充的位数 |
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| 28 | $amount_to_pad = PKCS7Encoder::$block_size - ($text_length % PKCS7Encoder::$block_size); |
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| 29 | if ($amount_to_pad == 0) { |
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| 30 | $amount_to_pad = PKCS7Encoder::block_size; |
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| 31 | } |
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| 32 | //获得补位所用的字符 |
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| 33 | $pad_chr = chr($amount_to_pad); |
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| 34 | $tmp = ""; |
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| 35 | for ($index = 0; $index < $amount_to_pad; $index++) { |
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| 36 | $tmp .= $pad_chr; |
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| 37 | } |
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| 38 | |||
| 39 | return $text . $tmp; |
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| 40 | } |
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| 41 | |||
| 59 |
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.