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POArrays operiation
 

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plurals
  1. POArrays operiation
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    <p>How to move in order to fit the answers to questions in array or how to make sql query for the desired effect? I tired of this alredy a few days.</p> <pre><code>&lt;?php public function getQuestions() { $sql = 'SELECT * FROM questions'; $result = Database::query($sql); while ($row = mysql_fetch_assoc($result)) { $questions[] = $row; } return $questions; } public function getAnswers($qid) { $sql = 'SELECT idq, answer, truth FROM answers WHERE idq = '.$qid; $result = Database::query($sql); while ($row = mysql_fetch_assoc($result)) { $answers[] = $row; } return $answers; } public static function array_add($a1, $a2) { $aRes = $a1; foreach (array_slice(func_get_args(), 1) as $aRay) { foreach (array_intersect_key($aRay, $aRes) as $key =&gt; $val) $aRes[$key] += $val; $aRes += $aRay; } return $aRes; } public static function getQuiz() { $db = new Database(); self::$questions = $db-&gt;getQuestions(); foreach( self::$questions as $q ) { $qid = $q['qid']; self::$answers[$qid] = $db-&gt;getAnswers($qid); } $s = Quiz::array_add(self::$questions, self::$answers); print "&lt;pre&gt;"; print_r($s); print "&lt;/pre&gt;"; } ?&gt; </code></pre> <p>output:</p> <pre><code>Array ( [0] =&gt; Array ( [qid] =&gt; 1 [question] =&gt; Bunty szlachty pod has?ami obrony praw nazywamy? ) [1] =&gt; Array ( [qid] =&gt; 2 [question] =&gt; Kto dowodzi? wojskami kozackimi podczas powstania Chmielnickiego? [0] =&gt; Array ( [idq] =&gt; 1 [answer] =&gt; liberum veto [truth] =&gt; 1 ) [1] =&gt; Array ( [idq] =&gt; 1 [answer] =&gt; jurydyki [truth] =&gt; 0 ) [2] =&gt; Array ( [idq] =&gt; 1 [answer] =&gt; rokosze [truth] =&gt; 0 ) ) [2] =&gt; Array ( [qid] =&gt; 3 [question] =&gt; W którym roku odby?a si?, morska, bitwa pod Oliw?? [0] =&gt; Array ( [idq] =&gt; 2 [answer] =&gt; Bohdan Chmielnicki [truth] =&gt; 1 ) [1] =&gt; Array ( [idq] =&gt; 2 [answer] =&gt; Gustaw II Adolf [truth] =&gt; 0 ) [2] =&gt; Array ( [idq] =&gt; 2 [answer] =&gt; Iwan IV Gro?ny [truth] =&gt; 0 ) ) [3] =&gt; Array ( [0] =&gt; Array ( [idq] =&gt; 3 [answer] =&gt; 1627 [truth] =&gt; 1 ) [1] =&gt; Array ( [idq] =&gt; 3 [answer] =&gt; 1608 [truth] =&gt; 0 ) [2] =&gt; Array ( [idq] =&gt; 3 [answer] =&gt; 1654 [truth] =&gt; 0 ) ) ) </code></pre> <p>I tried this solution yet but I need to have answers separately:</p> <pre><code>function get_quiz() { $sql = 'SELECT question, GROUP_CONCAT(answer ORDER BY answer SEPARAtoR " ") as answers FROM questions LEFT JOIN answers ON (questions.qid=answers.idq) GROUP BY answers.idq;'; $result = mysql_query($sql); while ($row = mysql_fetch_assoc($result)) { $quiz[] = $row; } return $quiz; } </code></pre> <p>output:</p> <pre><code>Array ( [0] =&gt; Array ( [question] =&gt; Bunty szlachty pod has?ami obrony praw nazywamy? [answers] =&gt; jurydyki liberum veto rokosze ) [1] =&gt; Array ( [question] =&gt; Kto dowodzi? wojskami kozackimi podczas powstania Chmielnickiego? [answers] =&gt; Bohdan Chmielnicki Gustaw II Adolf Iwan IV Gro?ny ) [2] =&gt; Array ( [question] =&gt; W którym roku odby?a si?, morska, bitwa pod Oliw?? [answers] =&gt; 1608 1627 1654 ) ) </code></pre>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USluzny
    1. USluzny
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. COCould you describe array's structure you need to get in the end?
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      1. POArrays operiation
      1. USNemoden
 

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