| 1 | <?php  | 
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| 9 | class ItemTest extends TestCase  | 
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| 10 | {
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| 11 | public function testInstantiation()  | 
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| 16 | |||
| 17 | |||
| 18 | public function testArrayRepresentation()  | 
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| 30 | |||
| 31 | |||
| 32 | public function testToString()  | 
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| 38 | |||
| 39 | /**  | 
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| 40 | * @expectedException InvalidArgumentException  | 
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| 41 | * @expectedExceptionMessage Invalid URL given:  | 
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| 42 | */  | 
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| 43 | public function testInvalidUrl()  | 
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| 48 | }  | 
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| 49 | 
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.