Conditions | 4 |
Paths | 4 |
Total Lines | 20 |
Code Lines | 16 |
Lines | 0 |
Ratio | 0 % |
Tests | 0 |
CRAP Score | 20 |
Changes | 1 | ||
Bugs | 0 | Features | 0 |
1 | <?php |
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22 | public static function parseFileId($fileId) { |
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23 | $arr = explode('_', $fileId); |
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24 | if (count($arr) === 1) { |
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25 | $fileId = $arr[0]; |
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26 | $version = '0'; |
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27 | } else if (count($arr) === 2) { |
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28 | list($fileId, $instanceId) = $arr; |
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29 | $version = '0'; |
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30 | } else if (count($arr) === 3) { |
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31 | list($fileId, $instanceId, $version) = $arr; |
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32 | } else { |
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33 | throw new \Exception('$fileId has not the expected format'); |
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34 | } |
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35 | |||
36 | return [ |
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37 | $fileId, |
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38 | $instanceId, |
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39 | $version, |
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40 | ]; |
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41 | } |
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42 | |||
55 |
If you define a variable conditionally, it can happen that it is not defined for all execution paths.
Let’s take a look at an example:
In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.
Available Fixes
Check for existence of the variable explicitly:
Define a default value for the variable:
Add a value for the missing path: