1 | <?php |
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10 | class CookieMakerExtension |
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11 | { |
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12 | private $executable = 'CookieMaker'; |
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13 | |||
14 | private $sessionContainer; |
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15 | |||
16 | public function init(array $sessions, $executable = null) |
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46 | |||
47 | /** |
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48 | * @Event("ResponseRetriever.setSessionContainer.before") |
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49 | */ |
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50 | public function addSessions(SessionContainer $sessionContainer) |
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54 | } |
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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: