Complex classes like JobsMulti 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 JobsMulti, and based on these observations, apply Extract Interface, too.
| 1 | <?php namespace JobApis\Jobs\Client;  | 
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| 6 | class JobsMulti  | 
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| 7 | { | 
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| 8 | /**  | 
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| 9 | * Search keyword  | 
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| 10 | *  | 
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| 11 | * @var string  | 
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| 12 | */  | 
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| 13 | protected $keyword;  | 
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| 14 | |||
| 15 | /**  | 
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| 16 | * Search location  | 
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| 17 | *  | 
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| 18 | * @var string  | 
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| 19 | */  | 
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| 20 | protected $location;  | 
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| 21 | |||
| 22 | /**  | 
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| 23 | * Maximum age of results (in days)  | 
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| 24 | *  | 
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| 25 | * @var integer  | 
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| 26 | */  | 
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| 27 | protected $maxAge;  | 
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| 28 | |||
| 29 | /**  | 
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| 30 | * Maximum number of results to return in all results  | 
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| 31 | *  | 
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| 32 | * @var integer  | 
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| 33 | */  | 
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| 34 | protected $maxResults;  | 
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| 35 | |||
| 36 | /**  | 
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| 37 | * Order of results  | 
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| 38 | *  | 
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| 39 | * @var string  | 
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| 40 | */  | 
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| 41 | protected $order;  | 
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| 42 | |||
| 43 | /**  | 
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| 44 | * Field to order results by  | 
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| 45 | *  | 
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| 46 | * @var string  | 
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| 47 | */  | 
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| 48 | protected $orderBy;  | 
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| 49 | |||
| 50 | /**  | 
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| 51 | * Results page number  | 
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| 52 | *  | 
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| 53 | * @var integer  | 
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| 54 | */  | 
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| 55 | protected $pageNumber;  | 
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| 56 | |||
| 57 | /**  | 
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| 58 | * Results per page  | 
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| 59 | *  | 
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| 60 | * @var integer  | 
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| 61 | */  | 
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| 62 | protected $perPage;  | 
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| 63 | |||
| 64 | /**  | 
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| 65 | * Job board API providers  | 
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| 66 | *  | 
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| 67 | * @var array  | 
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| 68 | */  | 
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| 69 | protected $providers = [];  | 
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| 70 | |||
| 71 | /**  | 
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| 72 | * Job board API query objects  | 
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| 73 | *  | 
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| 74 | * @var array  | 
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| 75 | */  | 
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| 76 | protected $queries = [];  | 
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| 77 | |||
| 78 | /**  | 
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| 79 | * Creates query objects for each provider and creates this unified client.  | 
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| 80 | *  | 
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| 81 | * @param array $providers  | 
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| 82 | */  | 
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| 83 | 20 | public function __construct($providers = [])  | 
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| 84 |     { | 
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| 85 | 20 | $this->setProviders($providers);  | 
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| 86 | 20 | }  | 
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| 87 | |||
| 88 | /**  | 
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| 89 | * Gets jobs from all providers in a single go and returns a MultiCollection  | 
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| 90 | *  | 
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| 91 | * @return Collection  | 
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| 92 | */  | 
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| 93 | 2 | public function getAllJobs($options = [])  | 
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| 107 | |||
| 108 | /**  | 
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| 109 | * Gets jobs from a single provider and hydrates a new jobs collection.  | 
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| 110 | *  | 
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| 111 | * @var $name string Provider name.  | 
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| 112 | *  | 
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| 113 | * @return \JobApis\Jobs\Client\Collection  | 
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| 114 | */  | 
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| 115 | 8 | public function getJobsByProvider($name = null, $options = [])  | 
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| 133 | |||
| 134 | /**  | 
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| 135 | * Sets a keyword on the query.  | 
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| 136 | *  | 
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| 137 | * @param $keyword string  | 
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| 138 | *  | 
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| 139 | * @return $this  | 
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| 140 | */  | 
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| 141 | 8 | public function setKeyword($keyword = null)  | 
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| 142 |     { | 
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| 143 | 8 | $this->keyword = $keyword;  | 
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| 144 | |||
| 145 | 8 | return $this;  | 
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| 146 | }  | 
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| 147 | |||
| 148 | /**  | 
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| 149 | * Sets a location on the query for each provider.  | 
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| 150 | *  | 
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| 151 | * @param $location  | 
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| 152 | *  | 
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| 153 | * @return $this  | 
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| 154 | */  | 
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| 155 | 8 | public function setLocation($location = null)  | 
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| 156 |     { | 
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| 157 | 8 |         if (!$this->isValidLocation($location)) { | 
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| 158 | 2 |             throw new \OutOfBoundsException("Location parameter must follow the pattern 'City, ST'."); | 
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| 159 | }  | 
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| 160 | 6 | $this->location = $location;  | 
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| 161 | |||
| 162 | 6 | return $this;  | 
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| 163 | }  | 
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| 164 | |||
| 165 | /**  | 
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| 166 | * Sets the options used for the resulting collection  | 
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| 167 | *  | 
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| 168 | * @param array $options  | 
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| 169 | *  | 
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| 170 | * @return $this  | 
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| 171 | */  | 
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| 172 | 10 | public function setOptions($options = [])  | 
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| 173 |     { | 
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| 174 | 10 |         if (isset($options['maxAge'])) { | 
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| 175 | 4 | $this->maxAge = $options['maxAge'];  | 
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| 176 | 4 | }  | 
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| 177 | 10 |         if (isset($options['maxResults'])) { | 
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| 178 | 4 | $this->maxResults = $options['maxResults'];  | 
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| 179 | 4 | }  | 
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| 180 | 10 |         if (isset($options['order'])) { | 
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| 181 | 4 | $this->order = $options['order'];  | 
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| 182 | 4 | }  | 
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| 183 | 10 |         if (isset($options['orderBy'])) { | 
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| 184 | 4 | $this->orderBy = $options['orderBy'];  | 
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| 185 | 4 | }  | 
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| 186 | |||
| 187 | 10 | return $this;  | 
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| 188 | }  | 
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| 189 | |||
| 190 | /**  | 
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| 191 | * Sets a page number and number of results per page for each provider.  | 
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| 192 | *  | 
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| 193 | * @param $pageNumber integer  | 
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| 194 | * @param $perPage integer  | 
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| 195 | *  | 
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| 196 | * @return $this  | 
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| 197 | */  | 
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| 198 | 6 | public function setPage($pageNumber = 1, $perPage = 10)  | 
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| 199 |     { | 
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| 200 | 6 | $this->pageNumber = $pageNumber;  | 
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| 201 | 6 | $this->perPage = $perPage;  | 
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| 202 | |||
| 203 | 6 | return $this;  | 
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| 204 | }  | 
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| 205 | |||
| 206 | /**  | 
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| 207 | * Sets an array of providers.  | 
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| 208 | *  | 
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| 209 | * @param $providers array  | 
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| 210 | *  | 
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| 211 | * @return $this  | 
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| 212 | */  | 
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| 213 | 20 | public function setProviders($providers = [])  | 
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| 219 | |||
| 220 | /**  | 
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| 221 | * Apply the options for this JobsMulti object to the Collection  | 
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| 222 | *  | 
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| 223 | * @param Collection $collection  | 
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| 224 | *  | 
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| 225 | * @return Collection  | 
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| 226 | */  | 
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| 227 | 6 | protected function applyOptions(Collection $collection)  | 
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| 228 |     { | 
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| 229 | // Order the results  | 
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| 230 | 6 |         if ($this->orderBy && $this->order) { | 
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| 231 | 2 | $collection->orderBy($this->orderBy, $this->order);  | 
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| 232 | 2 | }  | 
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| 233 | |||
| 234 | // Filter older listings out  | 
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| 235 | 6 |         if ($this->maxAge) { | 
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| 236 | 2 | $collection->filter(  | 
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| 237 | 2 | 'datePosted',  | 
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| 238 | 2 | new \DateTime($this->maxAge.' days ago'),  | 
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| 239 | '>'  | 
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| 240 | 2 | );  | 
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| 241 | 2 | }  | 
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| 242 | |||
| 243 | // Truncate to the maximum results (all by default)  | 
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| 244 | 6 |         if ($this->maxResults) { | 
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| 245 | 2 | $collection->truncate($this->maxResults);  | 
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| 246 | 2 | }  | 
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| 247 | |||
| 248 | 6 | return $collection;  | 
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| 249 | }  | 
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| 250 | |||
| 251 | /**  | 
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| 252 | * Gets an array of options from a translator array  | 
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| 253 | *  | 
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| 254 | * @param array $translator  | 
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| 255 | *  | 
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| 256 | * @return array  | 
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| 257 | */  | 
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| 258 | 6 | protected function getOptionsFromTranslator($translator = [])  | 
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| 273 | |||
| 274 | /**  | 
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| 275 | * Gets the options array based on the provider name.  | 
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| 276 | *  | 
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| 277 | * @param $name  | 
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| 278 | *  | 
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| 279 | * @return array  | 
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| 280 | */  | 
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| 281 | 6 | protected function getTranslatorForProvider($name)  | 
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| 389 | |||
| 390 | /**  | 
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| 391 | * Instantiates a provider using a query object.  | 
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| 392 | *  | 
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| 393 | * @param null $name  | 
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| 394 | * @param AbstractQuery $query  | 
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| 395 | *  | 
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| 396 | * @return AbstractProvider  | 
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| 397 | */  | 
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| 398 | 6 | protected function instantiateProvider($name, AbstractQuery $query)  | 
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| 404 | |||
| 405 | /**  | 
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| 406 | * Instantiates a query using a client name.  | 
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| 407 | *  | 
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| 408 | * @param null $name  | 
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| 409 | *  | 
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| 410 | * @return AbstractQuery  | 
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| 411 | */  | 
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| 412 | 8 | protected function instantiateQuery($name)  | 
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| 423 | |||
| 424 | /**  | 
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| 425 | * Get the city and state as an array from a location string.  | 
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| 426 | *  | 
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| 427 | * @return array  | 
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| 428 | */  | 
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| 429 | 2 | private function getCityAndState()  | 
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| 440 | |||
| 441 | /**  | 
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| 442 | * Gets a from value.  | 
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| 443 | *  | 
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| 444 | * @return array  | 
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| 445 | */  | 
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| 446 | 3 | private function getFrom()  | 
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| 455 | |||
| 456 | /**  | 
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| 457 | * Gets page number minus 1.  | 
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| 458 | *  | 
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| 459 | * @return array  | 
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| 460 | */  | 
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| 461 | 2 | private function getPageMinusOne()  | 
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| 470 | |||
| 471 | /**  | 
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| 472 | * Get the query with keyword and location.  | 
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| 473 | *  | 
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| 474 | * @return array  | 
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| 475 | */  | 
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| 476 | 3 | private function getQueryWithKeywordAndLocation()  | 
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| 488 | |||
| 489 | /**  | 
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| 490 | * Gets a start at value.  | 
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| 491 | *  | 
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| 492 | * @return array  | 
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| 493 | */  | 
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| 494 | private function getStart()  | 
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| 503 | |||
| 504 | /**  | 
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| 505 | * Tests whether location string follows valid convention (City, ST).  | 
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| 506 | *  | 
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| 507 | * @param string $location  | 
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| 508 | *  | 
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| 509 | * @return bool  | 
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| 510 | */  | 
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| 511 | 8 | private function isValidLocation($location = null)  | 
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| 516 | }  | 
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| 517 | 
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: