Conditions | 5 |
Paths | 221 |
Total Lines | 71 |
Lines | 0 |
Ratio | 0 % |
Changes | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
1 | <?php |
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37 | public function parse($uri) |
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38 | { |
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39 | $cfp = clone($this->cfp); |
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40 | try { |
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41 | $dom = new DOMDocument('1.0', 'UTF-8'); |
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42 | |||
43 | $content = file_get_contents($uri); |
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44 | $content = mb_convert_encoding($content, 'UTF-8'); |
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45 | $content = preg_replace('/\<!DOCTYPE[^\>]*?\>/im', '', $content); |
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46 | |||
47 | $dom->loadHTML( |
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48 | '<?xml version="1.0" encoding="UTF-8" ?>' . $content, |
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49 | LIBXML_NOBLANKS ^ LIBXML_NOERROR ^ LIBXML_NOENT |
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50 | ); |
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51 | $dom->preserveWhiteSpace = false; |
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52 | |||
53 | $xpath = new DOMXPath($dom); |
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54 | |||
55 | $eventLocation = new Location(); |
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56 | $cfp->location = $eventLocation->parse($dom, $xpath); |
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57 | |||
58 | try { |
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59 | $location = $this->geolocationService->getLocationForAddress($cfp->location); |
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60 | $cfp->latitude = $location->getLatitude(); |
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61 | $cfp->longitude = $location->getLongitude(); |
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62 | $timezone = $this->timezoneService->getTimezoneForLocation($location->getLatitude(), $location->getLongitude()); |
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63 | } catch (\UnexpectedValueException $e) { |
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64 | error_log($e->getMessage()); |
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65 | } |
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66 | $cfp->timezone = $timezone; |
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67 | |||
68 | $timezone = new DateTimeZone($cfp->timezone); |
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69 | |||
70 | $closingDateParser = new ClosingDate($timezone); |
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71 | $cfp->dateEnd = $closingDateParser->parse($dom, $xpath); |
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72 | |||
73 | $descriptionParser = new Description(); |
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74 | $cfp->description = $descriptionParser->parse($dom, $xpath); |
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75 | |||
76 | $openingDateParser = new OpeningDate($timezone); |
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77 | try { |
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78 | $cfp->dateStart = $openingDateParser->parse($dom, $xpath); |
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79 | } catch (Exception $e) { |
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80 | } |
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81 | |||
82 | $cfp->uri = $uri; |
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83 | |||
84 | $confNameParser = new EventName(); |
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85 | $cfp->conferenceName = $confNameParser->parse($dom, $xpath); |
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86 | |||
87 | $confUriParser = new EventUri(); |
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88 | $cfp->conferenceUri = $confUriParser->parse($dom, $xpath); |
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89 | |||
90 | $eventStartDate = new EventStartDate($timezone); |
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91 | $cfp->eventStartDate = $eventStartDate->parse($dom, $xpath); |
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92 | |||
93 | try { |
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94 | $eventEndDate = new EventEndDate($timezone); |
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95 | $cfp->eventEndDate = $eventEndDate->parse($dom, $xpath); |
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96 | } catch (InvalidArgumentException $e) { |
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97 | $cfp->eventEndDate = $cfp->eventStartDate; |
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98 | } |
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99 | |||
100 | $iconUri = new IconUri($uri); |
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101 | $cfp->iconUri = $iconUri->parse($dom, $xpath); |
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102 | |||
103 | return $cfp; |
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104 | } catch (Exception $e) { |
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105 | throw $e; |
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106 | } |
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107 | } |
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108 | } |
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109 |
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: