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<?php |
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declare(strict_types = 1); |
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namespace App\Services; |
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use App\Models\Compilation; |
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class StatisticService |
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{ |
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/** |
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* @var CompilationService |
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*/ |
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private $compilationService; |
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public function __construct(CompilationService $compilationService) |
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{ |
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$this->compilationService = $compilationService; |
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} |
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/** |
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* Export a set of compilation to a statistic-compliant format. |
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* |
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* @param array|\Traversable $compilations |
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* |
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* @return array e.g. Array ( |
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* Array ( |
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* [stage_location_id] => 14 |
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* [stage_ward_id] => 47 |
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* [stage_academic_year] => 2017/2018 |
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* [stage_weeks] => 10 |
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* [student_gender] => female |
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* [student_nationality] => IT |
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* [q1] => 10 |
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* [q2] => 86 |
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* [q3] => 87 |
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* [q4] => 90 |
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* [q5] => 95 |
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* [q6] => 103 |
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* [q7] => 105 |
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* [q9] => 109 |
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* [q10] => 139 |
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* [q11] => 141 |
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* [q13] => 147 |
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* [q14] => 152 |
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* [q15] => 156 |
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* [q16] => 160 |
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* [q17] => 164 |
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* [q18] => 168 |
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* [q19] => 172 |
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* [q20] => 176 |
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* [q21] => 180 |
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* [q22] => 184 |
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* [q23] => 188 |
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* [q24] => 192 |
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* [q25] => 196 |
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* [q26] => 200 |
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* [q27] => 204 |
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* [q28] => 208 |
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* [q29] => 212 |
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* [q30] => 216 |
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* [q31] => 220 |
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* [q32] => 224 |
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* [q33] => 228 |
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* [q34] => 232 |
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* [q35] => 236 |
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* ) |
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* [...] |
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* ) |
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*/ |
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public function formatCompilations($compilations) : array |
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{ |
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if (is_array($compilations) === false && |
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($compilations instanceof \Traversable) === false |
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) { |
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throw new \InvalidArgumentException("Compilation set must be an array or implement Traversable interface"); |
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} |
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if ($compilations instanceof \Traversable) { |
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$compilations = iterator_to_array($compilations); |
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} |
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return array_map([$this, "formatCompilation"], $compilations); |
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} |
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/** |
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* Export a compilation to a statistic-compliant format. |
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* |
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* @param Compilation $compilation |
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* |
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* @return array e.g. Array ( |
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* [stage_location_id] => 14 |
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* [stage_ward_id] => 47 |
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* [stage_academic_year] => 2017/2018 |
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* [stage_weeks] => 10 |
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* [student_gender] => female |
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* [student_nationality] => IT |
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* [q1] => 10 |
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* [q2] => 86 |
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* [q3] => 87 |
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* [q4] => 90 |
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* [q5] => 95 |
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* [q6] => 103 |
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* [q7] => 105 |
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* [q9] => 109 |
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* [q10] => 139 |
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* [q11] => 141 |
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* [q13] => 147 |
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* [q14] => 152 |
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* [q15] => 156 |
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* [q16] => 160 |
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* [q17] => 164 |
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* [q18] => 168 |
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* [q19] => 172 |
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* [q20] => 176 |
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* [q21] => 180 |
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* [q22] => 184 |
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* [q23] => 188 |
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* [q24] => 192 |
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* [q25] => 196 |
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* [q26] => 200 |
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* [q27] => 204 |
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* [q28] => 208 |
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* [q29] => 212 |
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* [q30] => 216 |
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* [q31] => 220 |
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* [q32] => 224 |
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* [q33] => 228 |
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* [q34] => 232 |
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* [q35] => 236 |
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* ) |
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*/ |
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public function formatCompilation(Compilation $compilation) : array |
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{ |
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$formatted = [ |
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"stage_location_id" => $compilation->stage_location_id, |
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"stage_ward_id" => $compilation->stage_ward_id, |
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"stage_academic_year" => $compilation->stage_academic_year, |
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"stage_weeks" => $compilation->stage_weeks, |
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"student_gender" => $compilation->student->gender, |
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"student_nationality" => $compilation->student->nationality, |
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]; |
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foreach ($compilation->items as $item) { |
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// NULL answers are added during compilation creation for validation purposes. |
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if ($item->answer !== null) { |
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$formatted["q" . $item->question_id] = $item->answer; |
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} |
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} |
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return $formatted; |
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} |
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/** |
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* Count occurrences of each answer of each question of the provided compilations. |
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* |
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* @param array|\Traversable $formattedCompilations |
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* @return array e.g. Array ( |
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* [stage_location_id] => Array ( |
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* [14] => 82 |
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* [21] => 11 |
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* [...] |
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* ) |
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* [stage_ward_id] => Array ( |
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* [65] => 3 |
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* [3] => 7 |
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* [...] |
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* ) |
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* [stage_academic_year] => Array ( |
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* [2017/2018] => 120 |
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* [2016/2017] => 1 |
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* ) |
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* [stage_weeks] => Array ( |
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* [8] => 11 |
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* [5] => 1 |
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* [...] |
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* ) |
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* [student_gender] => Array ( |
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* [female] => 95 |
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* [male] => 26 |
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* ) |
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* [student_nationality] => Array ( |
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* [RO] => 4 |
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* [IT] => 111 |
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* [...] |
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* ) |
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* [q1] => Array ( |
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* [5] => 35 |
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* [8] => 5 |
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* [...] |
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* ) |
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* [q2] => Array ( |
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* [84] => 18 |
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* [85] => 12 |
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* [...] |
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* ) |
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* [...] |
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* ) |
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*/ |
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public function getStatistics($formattedCompilations) : array |
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{ |
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if (is_array($formattedCompilations) === false && |
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($formattedCompilations instanceof \Traversable) === false |
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) { |
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throw new \InvalidArgumentException("Compilation set must be an array or implement Traversable interface"); |
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} |
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$statistics = []; |
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foreach ($formattedCompilations as $formattedCompilation) { |
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foreach ($formattedCompilation as $questionId => $answerId) { |
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if (isset($statistics[$questionId]) === false) { |
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$statistics[$questionId] = []; |
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} |
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if (isset($statistics[$questionId][$answerId]) === false) { |
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$statistics[$questionId][$answerId] = 0; |
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} |
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$statistics[$questionId][$answerId]++; |
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} |
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} |
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// Answers are sorted by record ID. |
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// @todo sort by answer real sort value |
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foreach ($statistics as $questionId => &$answers) { |
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if (preg_match("/^q\d+$/", $questionId) === 1) { |
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ksort($answers); |
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} |
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} |
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return $statistics; |
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} |
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} |
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francescozanoni /
clqei
Francesco Zanoni
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