| Conditions | 7 |
| Paths | 4 |
| Total Lines | 22 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 0 | ||
| 1 | <?php |
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| 27 | public function getDataCellValue($model, $key, $index) |
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| 28 | { |
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| 29 | $prc = mt_rand(1, 100); |
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| 30 | switch ($prc) { |
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| 31 | case $prc >= 0 && $prc <= 40: |
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| 32 | $level = 'progress-bar-success'; |
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| 33 | break; |
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| 34 | case $prc >= 41 && $prc <= 70: |
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| 35 | $level = 'progress-bar-warning'; |
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| 36 | break; |
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| 37 | case $prc >= 71 && $prc <= 100: |
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| 38 | $level = 'progress-bar-danger'; |
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| 39 | break; |
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| 40 | } |
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| 41 | |||
| 42 | return Progress::widget([ |
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| 43 | 'percent' => $prc, |
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| 44 | 'label' => $prc . '%', |
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| 45 | 'barOptions' => ['class' => $level], |
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| 46 | 'options' => ['style' => 'background-color: grey;'], |
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| 47 | ]); |
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| 48 | } |
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| 49 | } |
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| 50 |
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: