在PHP中自定义数组的显示

Question

我有一个返回此结果的SQL查询：

但我想像那样显示它

我如何在PHP中做到这一点，我尝试了但是我发现了一些有关'Semaine X'的问题，它将成为表Column的名称和'libelleCategorieClient'的值，它不能重复 谢谢，

Answer 1

为了将行转换为列（Pivoting），假设libelleCategorieClient是唯一的，请尝试以下操作：

<?php
$db = new PDO('mysql:host=localhost;dbname=test', 'root', 'pass');
    $q = $db->query("SELECT DISTINCT cat.libelleCategorieClient,
            sum(ligne.quantiteLigneCommande * ligne.prixLigneCommande) AS montant, 
            sem.libelleSemaine 
            FROM CategorieClient cat,Client c, commande cmd,
            lignecommande ligne,semaine sem 
            WHERE cat.idCategorieClient=c.idCategorieClient 
            AND c.idClient=cmd.idClient AND cmd.idCommande=ligne.idCommande 
            AND sem.idSemaine=cmd.idSemaine 
            GROUP BY cat.libelleCategorieClient, sem.libelleSemaine");
    $sem=array();
    $client=array();
    while($row=$q->fetch(PDO::FETCH_ASSOC)){
        $sem[$row['cat.libelleCategorieClient']][$row['libelleSemaine']] = $row['montant'];
        $client[$row['cat.libelleCategorieClient']]= $row['libelleCategorieClient'];
    }
    $semkey=key($sem);

    echo '<table>';
    echo '<tr>';
    echo '<th>Cetegories Clients</th>';
    foreach($sem[$semkey] as $keys=>$vals){ 
            echo '<th>'.$keys.'</th>';
    }
    echo '</tr>';

    foreach($sem as $key=>$val){
           echo '<tr>';
            echo '<td>'.$client[$key].'</td>';
            foreach($val as $v){
                echo '<td>'.$v.'</td>';
            }
        echo '</tr>';
    }
    echo '</table>';
?>