Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
1 | <?php |
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19 | abstract class AbstractServer implements ServerInterface |
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20 | { |
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21 | /** |
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22 | * @var integer $installationStatus |
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23 | * |
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24 | * @ORM\Column(name="installation_status", type="integer", nullable=true) |
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25 | */ |
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26 | protected $installationStatus; |
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27 | |||
28 | /** |
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29 | * @var boolean $alreadyInstalled Used by the creation process |
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30 | */ |
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31 | protected $alreadyInstalled; |
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32 | |||
33 | /** |
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34 | * @var array $core |
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35 | * |
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36 | * @ORM\Column(name="core", type="simple_array", nullable=true) |
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37 | */ |
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38 | protected $core = array(); |
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39 | |||
40 | /** |
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41 | * @var string $dir |
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42 | * |
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43 | * @ORM\Column(name="dir", type="string", length=64) |
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44 | */ |
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45 | protected $dir; |
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46 | |||
47 | |||
48 | /** {@inheritdoc} */ |
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49 | abstract public function getName(); |
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50 | |||
51 | /** |
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52 | * Set whether is already already installed |
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53 | * |
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54 | * @param boolean $alreadyInstalled |
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55 | * |
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56 | * @return AbstractServer |
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57 | */ |
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58 | public function setAlreadyInstalled($alreadyInstalled) |
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68 | |||
69 | /** |
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70 | * Is already installed ? (from form) |
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71 | * |
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72 | * @return boolean |
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73 | */ |
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74 | public function isAlreadyInstalled() |
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78 | |||
79 | /** |
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80 | * {@inheritdoc} |
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81 | */ |
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82 | public function setInstallationStatus($installationStatus) |
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86 | |||
87 | /** |
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88 | * {@inheritdoc} |
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89 | */ |
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90 | public function getInstallationStatus() |
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94 | |||
95 | /** |
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96 | * {@inheritdoc} |
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97 | */ |
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98 | public function isInstallationEnded() |
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102 | |||
103 | /** |
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104 | * {@inheritdoc} |
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105 | */ |
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106 | public function getMachine() |
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110 | |||
111 | /** |
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112 | * {@inheritdoc} |
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113 | */ |
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114 | public function deleteServer() |
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120 | |||
121 | public function deleteInstallDir() |
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132 | |||
133 | /** |
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134 | * Try to retrieve the most recent percentage in $installLog |
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135 | * |
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136 | * @param string $installLog Will seperate log by lines |
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137 | * @return null|string |
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138 | */ |
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139 | protected function getPercentFromInstallLog($installLog) |
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158 | |||
159 | /** {@inheritdoc} */ |
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160 | public function getFullName() |
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164 | |||
165 | /** |
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166 | * @var array $core |
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167 | * @return array |
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168 | */ |
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169 | public function setCore(array $core = array()) |
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175 | |||
176 | /** {@inheritdoc} */ |
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177 | public function getCore() |
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181 | |||
182 | /** {@inheritdoc} */ |
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183 | public function setDir($dir) |
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187 | |||
188 | /** {@inheritdoc} */ |
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189 | public function getDir() |
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193 | |||
194 | /** |
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195 | * Get absolute path of server installation directory |
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196 | * |
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197 | * @return string |
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198 | */ |
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199 | public function getAbsoluteDir() |
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203 | |||
204 | public static function loadValidatorMetadata(ClassMetadata $metadata) |
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208 | |||
209 | public function validateServer(ExecutionContextInterface $context) |
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234 | } |
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235 |
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: