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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37 | class Yaml |
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38 | { |
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39 | |||
40 | /** |
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41 | * Dump an PHP array as a YAML string |
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42 | * |
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43 | * @param mixed $var Variable which will be dumped |
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44 | * @param integer $inline Nesting level where you switch to inline YAML |
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45 | * @param integer $indent Number of spaces to indent for nested nodes |
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46 | * |
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47 | * @return string|bool YAML string or false on error |
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48 | */ |
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49 | 1 | public static function dump($var, $inline = 4, $indent = 4) |
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59 | |||
60 | /** |
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61 | * Load a YAML string into a PHP array |
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62 | * |
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63 | * @param string $yamlString YAML dump string |
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64 | * |
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65 | * @return array|boolean PHP array or false on error |
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66 | */ |
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67 | 1 | public static function load($yamlString) |
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77 | |||
78 | /** |
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79 | * Read a file containing YAML into a PHP array |
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80 | * |
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81 | * @param string $yamlFile filename of YAML file |
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82 | * |
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83 | * @return array|boolean PHP array or false on error |
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84 | */ |
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85 | 3 | View Code Duplication | public static function read($yamlFile) |
96 | |||
97 | /** |
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98 | * Save a PHP array as a YAML file |
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99 | * |
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100 | * @param array $var variable which will be dumped |
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101 | * @param string $yamlFile filename of YAML file |
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102 | * @param integer $inline Nesting level where you switch to inline YAML |
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103 | * @param integer $indent Number of spaces to indent for nested nodes |
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104 | * |
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105 | * @return integer|boolean number of bytes written, or false on error |
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106 | */ |
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107 | 2 | View Code Duplication | public static function save($var, $yamlFile, $inline = 4, $indent = 4) |
118 | |||
119 | /** |
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120 | * Dump an PHP array as a YAML string with a php wrapper |
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121 | * |
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122 | * The wrap is a php header that surrounds the yaml with section markers, |
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123 | * '---' and '...' along with php comment markers. The php wrapper keeps the |
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124 | * yaml file contents from being revealed by serving the file directly from |
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125 | * a poorly configured server. |
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126 | * |
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127 | * @param mixed $var Variable which will be dumped |
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128 | * @param integer $inline Nesting level where you switch to inline YAML |
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129 | * @param integer $indent Number of spaces to indent for nested nodes |
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130 | * |
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131 | * @return string|boolean YAML string or false on error |
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132 | */ |
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133 | 2 | public static function dumpWrapped($var, $inline = 4, $indent = 4) |
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144 | |||
145 | /** |
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146 | * Load a YAML string with a php wrapper into a PHP array |
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147 | * |
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148 | * The wrap is a php header that surrounds the yaml with section markers, |
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149 | * '---' and '...' along with php comment markers. The php wrapper keeps the |
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150 | * yaml file contents from being revealed by serving the file directly from |
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151 | * a poorly configured server. |
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152 | * |
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153 | * @param string $yamlString YAML dump string |
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154 | * |
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155 | * @return array|boolean PHP array or false on error |
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156 | */ |
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157 | 3 | public static function loadWrapped($yamlString) |
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183 | |||
184 | /** |
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185 | * Read a file containing YAML with a php wrapper into a PHP array |
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186 | * |
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187 | * The wrap is a php header that surrounds the yaml with section markers, |
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188 | * '---' and '...' along with php comment markers. The php wrapper keeps the |
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189 | * yaml file contents from being revealed by serving the file directly from |
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190 | * a poorly configured server. |
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191 | * |
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192 | * @param string $yamlFile filename of YAML file |
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193 | * |
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194 | * @return array|boolean PHP array or false on error |
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195 | */ |
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196 | 1 | View Code Duplication | public static function readWrapped($yamlFile) |
207 | |||
208 | /** |
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209 | * Save a PHP array as a YAML file with a php wrapper |
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210 | * |
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211 | * The wrap is a php header that surrounds the yaml with section markers, |
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212 | * '---' and '...' along with php comment markers. The php wrapper keeps the |
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213 | * yaml file contents from being revealed by serving the file directly from |
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214 | * a poorly configured server. |
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215 | * |
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216 | * @param array $var variable which will be dumped |
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217 | * @param string $yamlFile filename of YAML file |
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218 | * @param integer $inline Nesting level where you switch to inline YAML |
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219 | * @param integer $indent Number of spaces to indent for nested nodes |
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220 | * |
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221 | * @return integer|boolean number of bytes written, or false on error |
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222 | */ |
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223 | 1 | View Code Duplication | public static function saveWrapped($var, $yamlFile, $inline = 4, $indent = 4) |
234 | |||
235 | /** |
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236 | * @param \Exception $e throwable to log |
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237 | */ |
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238 | protected static function logError($e) |
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246 | } |
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247 |
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()
can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.