| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace Drupal\DrupalExtension\Context; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use Drupal\DrupalMailManager; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * Provides helper methods for interacting with mail. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | class RawMailContext extends RawDrupalContext | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |   /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |    * The mail manager. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |    * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |    * @var \Drupal\DrupalMailManagerInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |    */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |     protected $mailManager; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |   /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |    * The number of mails received so far in this scenario, for each mail store. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |    * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |    * @var array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |    */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |     protected $mailCount = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |   /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |    * Get the mail manager service that handles stored test mail. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |    * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |    * @return \Drupal\DrupalMailManagerInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |    *   The mail manager service. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |    */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |     protected function getMailManager() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |         // Persist the mail manager between invocations. This is necessary for | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |         // remembering and reinstating the original mail backend. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |         if (is_null($this->mailManager)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |             $this->mailManager = new DrupalMailManager($this->getDriver()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |         return $this->mailManager; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |   /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |    * Get collected mail, matching certain specifications. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |    * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |    * @param array $matches | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |    *   Associative array of mail fields and the values to filter by. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |    * @param bool $new | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |    *   Whether to ignore previously seen mail. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |    * @param null|int $index | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |    *   A particular mail to return, e.g. 0 for first or -1 for last. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |    * @param string $store | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |    *   The name of the mail store to get mail from. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |    * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |    * @return \stdClass[] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |    *   An array of mail, each formatted as a Drupal 8 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |    * \Drupal\Core\Mail\MailInterface::mail $message array. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |    */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |     protected function getMail($matches = [], $new = false, $index = null, $store = 'default') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |         $mail = $this->getMailManager()->getMail($store); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |         $previousMailCount = $this->getMailCount($store); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |         $this->mailCount[$store] = count($mail); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |         // Ignore previously seen mail. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |         if ($new) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |             $mail = array_slice($mail, $previousMailCount); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |         // Filter mail based on $matches; keep only mail where each field mentioned | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |         // in $matches contains the value specified for that field. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |         $mail = array_values(array_filter($mail, function ($singleMail) use ($matches) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |             return ($this->matchesMail($singleMail, $matches)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |         })); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |         // Return an individual mail if specified by an index. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |         if (is_null($index) || count($mail) === 0) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |             return $mail; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |             return array_slice($mail, $index, 1)[0]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |   /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |    * Get the number of mails received in a particular mail store. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |    * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |    * @return int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |    *   The number of mails received during this scenario. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |    */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |     protected function getMailCount($store) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |         if (array_key_exists($store, $this->mailCount)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |             $count = $this->mailCount[$store]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |             $count = 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |         return $count; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |   /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |    * Determine if a mail meets criteria. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |    * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |    * @param array $mail | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |    *   The mail, as an array of mail fields. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |    * @param array $matches | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |    *   The criteria: an associative array of mail fields and desired values. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |    * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |    * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |    *   Whether the mail matches the criteria. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |    */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |     protected function matchesMail($mail = [], $matches = []) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |         // Discard criteria that are just zero-length strings. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |         $matches = array_filter($matches, 'strlen'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |         // For each criteria, check the specified mail field contains the value. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |         foreach ($matches as $field => $value) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |             // Case insensitive. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |             if (stripos($mail[$field], $value) === false) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |                 return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |         return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |   /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |    * Compare actual mail with expected mail. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |    * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |    * @param array $actualMail | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |    *   An array of actual mail. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |    * @param array $expectedMail | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |    *   An array of expected mail. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |    */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |     protected function compareMail($actualMail, $expectedMail) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |         // Make sure there is the same number of actual and expected. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |         $expectedCount = count($expectedMail); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |         $this->assertMailCount($actualMail, $expectedCount); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |         // For each row of expected mail, check the corresponding actual mail. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |         // Make the comparison insensitive to the order mails were sent. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |         $actualMail = $this->sortMail($actualMail); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |         $expectedMail = $this->sortMail($expectedMail); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |         foreach ($expectedMail as $index => $expectedMailItem) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |             // For each column of the expected, check the field of the actual mail. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |             foreach ($expectedMailItem as $fieldName => $fieldValue) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |                 $expectedField = [$fieldName => $fieldValue]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |                 $match = $this->matchesMail($actualMail[$index], $expectedField); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |                 if (!$match) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |                     throw new \Exception(sprintf("The #%s mail did not have '%s' in its %s field. It had:\n'%s'", $index, $fieldValue, $fieldName, mb_strimwidth($actualMail[$index][$fieldName], 0, 30, "..."))); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |   /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |    * Assert there is the expected number of mails, or that there are some mails | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |    * if the exact number expected is not specified. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |    * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |    * @param array $actualMail | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |    *   An array of actual mail. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |    * @param int $expectedCount | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |    *   Optional. The number of mails expected. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |    */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |     protected function assertMailCount($actualMail, $expectedCount = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |         $actualCount = count($actualMail); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |         if (is_null($expectedCount)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |             // If number to expect is not specified, expect more than zero. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |             if ($actualCount === 0) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |                 throw new \Exception("Expected some mail, but none found."); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |             if ($expectedCount != $actualCount) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |                 // Prepare a simple list of actual mail. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |                 $prettyActualMail = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |                 foreach ($actualMail as $singleActualMail) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |                     $prettyActualMail[] = [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |                     'to' => $singleActualMail['to'], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |                     'subject' => $singleActualMail['subject'], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |                     ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |                 throw new \Exception(sprintf("Expected %s mail, but %s found:\n\n%s", $expectedCount, $actualCount, print_r($prettyActualMail, true))); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |    | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |   /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |    * Sort mail by to, subject and body. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |    * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |    * @param array $mail | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |    *   An array of mail to sort. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |    * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |    * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |    *   The same mail, but sorted. | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 195 |  |  |    */ | 
            
                                                                        
                            
            
                                    
            
            
                | 196 |  |  |     protected function sortMail($mail) | 
            
                                                                        
                            
            
                                    
            
            
                | 197 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 198 |  |  |         // Can't sort an empty array. | 
            
                                                                        
                            
            
                                    
            
            
                | 199 |  |  |         if (count($mail) === 0) { | 
            
                                                                        
                            
            
                                    
            
            
                | 200 |  |  |             return []; | 
            
                                                                        
                            
            
                                    
            
            
                | 201 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 202 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 203 |  |  |         // To, subject and body keys must be present. | 
            
                                                                        
                            
            
                                    
            
            
                | 204 |  |  |         // Empty strings are ignored when matching so adding them is harmless. | 
            
                                                                        
                            
            
                                    
            
            
                | 205 |  |  |         foreach ($mail as $key => $row) { | 
            
                                                                        
                            
            
                                    
            
            
                | 206 |  |  |             if (!array_key_exists('to', $row)) { | 
            
                                                                        
                            
            
                                    
            
            
                | 207 |  |  |                 $mail[$key]['to'] = ''; | 
            
                                                                        
                            
            
                                    
            
            
                | 208 |  |  |             } | 
            
                                                                        
                            
            
                                    
            
            
                | 209 |  |  |             if (!array_key_exists('subject', $row)) { | 
            
                                                                        
                            
            
                                    
            
            
                | 210 |  |  |                 $mail[$key]['subject'] = ''; | 
            
                                                                        
                            
            
                                    
            
            
                | 211 |  |  |             } | 
            
                                                                        
                            
            
                                    
            
            
                | 212 |  |  |             if (!array_key_exists('body', $row)) { | 
            
                                                                        
                            
            
                                    
            
            
                | 213 |  |  |                 $mail[$key]['body'] = ''; | 
            
                                                                        
                            
            
                                    
            
            
                | 214 |  |  |             } | 
            
                                                                        
                            
            
                                    
            
            
                | 215 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 216 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 217 |  |  |         // Obtain a list of columns. | 
            
                                                                        
                            
            
                                    
            
            
                | 218 |  |  |         foreach ($mail as $key => $row) { | 
            
                                                                        
                            
            
                                    
            
            
                | 219 |  |  |             if (array_key_exists('to', $row)) { | 
            
                                                                        
                            
            
                                    
            
            
                | 220 |  |  |                 $to[$key] = $row['to']; | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                        
                            
            
                                    
            
            
                | 221 |  |  |             } | 
            
                                                                        
                            
            
                                    
            
            
                | 222 |  |  |             if (array_key_exists('subject', $row)) { | 
            
                                                                        
                            
            
                                    
            
            
                | 223 |  |  |                 $subject[$key] = $row['subject']; | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                        
                            
            
                                    
            
            
                | 224 |  |  |             } | 
            
                                                                        
                            
            
                                    
            
            
                | 225 |  |  |             if (array_key_exists('body', $row)) { | 
            
                                                                        
                            
            
                                    
            
            
                | 226 |  |  |                 $body[$key] = $row['body']; | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                        
                            
            
                                    
            
            
                | 227 |  |  |             } | 
            
                                                                        
                            
            
                                    
            
            
                | 228 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 229 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 230 |  |  |         // Add $mail as the last parameter, to sort by the common key. | 
            
                                                                        
                            
            
                                    
            
            
                | 231 |  |  |         array_multisort($to, SORT_ASC, $subject, SORT_ASC, $body, SORT_ASC, $mail); | 
                            
                    |  |  |  | 
                                                                                        
                                                                                            
                                                                                     | 
            
                                                                        
                            
            
                                    
            
            
                | 232 |  |  |         return $mail; | 
            
                                                                        
                            
            
                                    
            
            
                | 233 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  |   /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  |    * Get the mink context, so we can visit pages using the mink session. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  |    */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  |     protected function getMinkContext() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  |         $minkContext =  $this->getContext('\Behat\MinkExtension\Context\RawMinkContext'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  |         if ($minkContext === false) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  |             throw new \Exception(sprintf('No mink context found.')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  |         return $minkContext; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 246 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 247 |  |  |  | 
            
                        
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArrayis initialized the first time when the foreach loop is entered. You can also see that the value of thebarkey is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.