Complex classes like MslsBlogCollection often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use MslsBlogCollection, and based on these observations, apply Extract Interface, too.
1 | <?php |
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15 | class MslsBlogCollection extends MslsRegistryInstance { |
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16 | |||
17 | /** |
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18 | * ID of the current blog |
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19 | * @var int |
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20 | */ |
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21 | private $current_blog_id; |
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22 | |||
23 | /** |
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24 | * True if the current blog should be in the output |
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25 | * @var bool |
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26 | */ |
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27 | private $current_blog_output; |
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28 | |||
29 | /** |
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30 | * Collection of MslsBlog-objects |
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31 | * @var MslsBlog[] |
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32 | */ |
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33 | private $objects = []; |
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34 | |||
35 | /** |
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36 | * Order output by language or description |
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37 | * @var string |
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38 | */ |
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39 | private $objects_order; |
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40 | |||
41 | /** |
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42 | * Active plugins in the whole network |
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43 | * @var array |
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44 | */ |
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45 | private $active_plugins; |
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46 | |||
47 | /** |
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48 | * Container for hreflang-mapping |
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49 | * @var array |
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50 | */ |
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51 | private $hreflangmap = []; |
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52 | |||
53 | /** |
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54 | * Constructor |
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55 | */ |
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56 | public function __construct() { |
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57 | if ( ! has_filter( 'msls_blog_collection_description' ) ) { |
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58 | add_filter( 'msls_blog_collection_description', [ $this, 'get_configured_blog_description' ], 10, 2 ); |
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59 | } |
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60 | |||
61 | $this->current_blog_id = get_current_blog_id(); |
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62 | |||
63 | $options = MslsOptions::instance(); |
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64 | |||
65 | $this->current_blog_output = isset( $options->output_current_blog ); |
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66 | $this->objects_order = $options->get_order(); |
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67 | |||
68 | if ( ! $options->is_excluded() ) { |
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69 | /** |
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70 | * Returns custom filtered blogs of the blogs_collection |
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71 | * @since 0.9.8 |
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72 | * |
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73 | * @param array $blogs_collection |
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74 | */ |
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75 | $blogs_collection = (array) apply_filters( |
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76 | 'msls_blog_collection_construct', |
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77 | $this->get_blogs_of_reference_user( $options ) |
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78 | ); |
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79 | |||
80 | foreach ( $blogs_collection as $blog ) { |
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81 | $description = false; |
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82 | if ( $blog->userblog_id == $this->current_blog_id ) { |
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83 | $description = $options->description; |
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84 | } elseif ( ! $this->is_plugin_active( $blog->userblog_id ) ) { |
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85 | continue; |
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86 | } |
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87 | |||
88 | $description = apply_filters( |
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89 | 'msls_blog_collection_description', |
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90 | $blog->userblog_id, |
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91 | $description |
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92 | ); |
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93 | |||
94 | if ( false !== $description ) { |
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95 | $this->objects[ $blog->userblog_id ] = new MslsBlog( $blog, $description ); |
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96 | } |
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97 | } |
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98 | uasort( $this->objects, [ MslsBlog::class, $this->objects_order ] ); |
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99 | } |
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100 | } |
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101 | |||
102 | /** |
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103 | * Returns the description of an configured blog or false if it is not configured |
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104 | * |
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105 | * @param int $blog_id |
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106 | * @param string|bool $description |
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107 | * |
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108 | * @return string|bool |
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109 | */ |
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110 | public static function get_configured_blog_description( $blog_id, $description = false ) { |
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111 | if ( false != $description ) { |
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112 | return $description; |
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113 | } |
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114 | |||
115 | $temp = get_blog_option( $blog_id, 'msls' ); |
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116 | if ( is_array( $temp ) && empty( $temp['exclude_current_blog'] ) ) { |
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117 | return $temp['description']; |
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118 | } |
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119 | |||
120 | return false; |
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121 | } |
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122 | |||
123 | /** |
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124 | * Gets the list of the blogs of the reference user |
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125 | * The first available user of the blog will be used if there is no |
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126 | * refrence user configured |
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127 | * |
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128 | * @param MslsOptions $options |
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129 | * |
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130 | * @return array |
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131 | */ |
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132 | public function get_blogs_of_reference_user( MslsOptions $options ) { |
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133 | $reference_user = $options->has_value( 'reference_user' ) ? $options->reference_user : current( $this->get_users( 'ID', 1 ) ); |
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134 | $blogs = get_blogs_of_user( $reference_user ); |
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135 | |||
136 | /** |
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137 | * @todo Check if this is still useful |
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138 | */ |
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139 | if ( is_array( $blogs ) ) { |
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140 | foreach ( $blogs as $key => $blog ) { |
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141 | $blogs[ $key ]->blog_id = $blog->userblog_id; |
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142 | } |
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143 | } |
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144 | |||
145 | return $blogs; |
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146 | } |
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147 | |||
148 | /** |
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149 | * Get blog by language |
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150 | * |
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151 | * @param string $language |
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152 | * |
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153 | * @return MslsBlog|null |
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154 | */ |
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155 | public function get_blog( $language ) { |
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167 | |||
168 | /** |
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169 | * Gets blog_id by language |
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170 | * |
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171 | * @param string $language |
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172 | * |
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173 | * @return string|null |
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174 | */ |
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175 | public function get_blog_id( $language ) { |
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181 | |||
182 | /** |
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183 | * Get the id of the current blog |
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184 | * @return int |
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185 | */ |
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186 | public function get_current_blog_id() { |
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189 | |||
190 | /** |
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191 | * Checks if blog is the current blog |
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192 | * |
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193 | * @param MslsBlog $blog |
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194 | * |
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195 | * @return bool |
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196 | */ |
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197 | public function is_current_blog( MslsBlog $blog ) { |
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200 | |||
201 | /** |
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202 | * Checks if current blog is in the collection |
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203 | * |
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204 | * @return bool |
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205 | */ |
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206 | public function has_current_blog() { |
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209 | |||
210 | /** |
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211 | * Gets current blog as object |
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212 | * @return MslsBlog|null |
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213 | */ |
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214 | public function get_current_blog() { |
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217 | |||
218 | /** |
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219 | * Gets an array with all blog-objects |
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220 | * @return MslsBlog[] |
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221 | */ |
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222 | public function get_objects() { |
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225 | |||
226 | /** |
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227 | * Is plugin active in the blog with that blog_id |
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228 | * |
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229 | * @param int $blog_id |
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230 | * |
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231 | * @return bool |
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232 | */ |
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233 | public function is_plugin_active( $blog_id ) { |
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247 | |||
248 | /** |
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249 | * Gets only blogs where the plugin is active |
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250 | * @return array |
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251 | */ |
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252 | public function get_plugin_active_blogs() { |
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263 | |||
264 | /** |
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265 | * Gets an array of all - but not the current - blog-objects |
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266 | * @return MslsBlog[] |
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267 | */ |
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268 | public function get() { |
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277 | |||
278 | /** |
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279 | * Gets an array with filtered blog-objects |
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280 | * |
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281 | * @param bool $filter |
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282 | * |
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283 | * @return MslsBlog[] |
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284 | */ |
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285 | public function get_filtered( $filter = false ) { |
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292 | |||
293 | /** |
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294 | * Gets the registered users of the current blog |
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295 | * |
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296 | * @param string $fields |
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297 | * @param int|string $number |
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298 | * |
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299 | * @return array |
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300 | */ |
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301 | public function get_users( $fields = 'all', $number = '' ) { |
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314 | |||
315 | /** |
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316 | * Returns a specific blog language. |
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317 | * |
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318 | * @param int $blog_id |
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319 | * @param string $default |
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320 | * |
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321 | * @return string |
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322 | */ |
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323 | public static function get_blog_language( $blog_id = null, $default = 'en_US' ) { |
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332 | |||
333 | } |
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334 |