如何使用查詢遍歷從 mysql 數據庫表創建的數組並在另一個 php 文件中使用該數組？

Question

我對 php 很陌生，我真的嘗試了幾天來找到解決方案，我覺得我快到了，但仍然沒有成功。 如果有人可以幫助我，我會很高興。 我正在建立一個用於預測足球的新網站。 我在 mysql 中有一個表，我可以成功獲取我需要的所有行。 我也想將數據以一種很好的方式存儲在數組中。

這是我獲取行並將它們存儲在數組中的第一個 php，我還需要列數據，因為我在新查詢的第二個 php 中需要它們。

文件名 filtre1_danimarka.php

<?php

include 'tableNameDanimarka.php';
include 'indexDanimarka.php';
include 'connectionDatabase.php';


$sql = "SELECT * 
        FROM $tableName 
        where NOT A ='*' ";



$result = $conn->query($sql);
$array = array();
if ($result->num_rows > 0) {
    // output data of each row
    while($row = $result->fetch_assoc()) {
$array[] = $row; 
}

for($i = 0, $j = count($array); $i < $j ; $i++){
 $B= $array[$i]['B'];
 $F = $array[$i]['F'];
 $E = $array[$i]['E'];
 $O = $array[$i]['O'];
 $Home = $array[$i]['HOME'];
 $Away =   $array[$i]['AWAY'];

}
} else {
    echo "0 results";
}
$conn->close();
?>  

第二個 php 文件 Firsthalfprediction.php

<?php
include 'filtre1_danimarka.php';
include 'tableNameDanimarka.php';
include 'connectionDatabase.php';



    $FirstHalfHome=0;
    $FirstHalfDraw=0;
    $FirstHalfAway=0;


    $sql = "SELECT * FROM $tableName where B = '$B' AND E = '$E' AND F = '$F' AND O ='$O' ";
    $result = $conn->query($sql);
    if ($result->num_rows > 0) {
    $rowcount=mysqli_num_rows($result);
        // output data of each row 
        while($row = $result->fetch_assoc()) {

    if($row['Q'] == 1){
    $FirstHalfHome++;
    }
    elseif($row['Q'] == 0){
    $FirstHalfDraw++;
    }else{
    $FirstHalfAway++;
    }



        }


    $FirstHalfHomePrediction = round(($FirstHalfHome/$rowcount )*100);
    $FirstHalfDrawPrediction = round(($FirstHalfDraw/$rowcount )*100);
    $FirstHalfAwayPrediction = round(($FirstHalfAway/$rowcount )*100);


    } else {
        echo "0 results";
    }
    $conn->close();
    ?>

和最終的 index.php

<table class="table">   
<thead> 
      <tr>
        <th>Home</th>
        <th>Away</th>
        <th>FirstHalf Prediction</th>
      </tr>
</thead>
<tr>
<?php
include 'filtre1_danimarka.php';
include 'Firsthalfprediction.php';

echo"<td>".$Home."</td>";
echo"<td>".$Away."</td>";
echo"<td>1=".$FirstHalfHomePrediction." 0=".$FirstHalfDrawPrediction."\r 2=".$FirstHalfAwayPrediction."</td>";

echo "</tr>";
?>
</table>

如果我像這樣運行代碼，我只會從數組中的最后一個索引中獲取信息。 我需要的是網站上顯示的所有數組數據。 我很清楚理解我的問題。 我希望得到反饋，非常感謝。

Answer 1

您正在每次循環迭代中覆蓋變量。 您應該填充一個新數組，並使用該數組輸出您的數據。

請閱讀我在您的代碼中所做的評論，我不能保證沒有錯誤，因為我無法對其進行測試，但這應該可以讓您了解您需要什么，請先嘗試自己修復錯誤，如果可以的話不要在這里評論尋求幫助。

filtre1_danimarka.php

<?php
//filtre1_danimarka.php

include 'tableNameDanimarka.php';
include 'indexDanimarka.php';
include 'connectionDatabase.php';

$sql = "SELECT * 
        FROM $tableName 
        where NOT A ='*' ";

$result = $conn->query($sql);
$array = array();
if ($result->num_rows > 0) {
    // output data of each row
    while($row = $result->fetch_assoc()) {
        $array[] = $row; 
    }

    // We removed the complete for, and give the array to the next scripts
} else {
    echo "0 results";
}
$conn->close();
?>  

前半預測.php

<?php
include 'filtre1_danimarka.php';
include 'tableNameDanimarka.php';
include 'connectionDatabase.php';


// New foreach to go through the data
foreach($array as $key => $val) {
    $FirstHalfHome=0;
    $FirstHalfDraw=0;
    $FirstHalfAway=0;
    $sql = "SELECT * FROM $tableName where B = '{$val['B']}' AND E = '{$val['E']}' AND F = '{$val['F']}' AND O ='{$val['O']}' ";
    $result = $conn->query($sql);
    if ($result->num_rows > 0) {
    $rowcount=mysqli_num_rows($result);
        // output data of each row 
        while($row = $result->fetch_assoc()) {
            if($row['Q'] == 1){
                $FirstHalfHome++;
            }elseif($row['Q'] == 0){
                $FirstHalfDraw++;
            }else{
                $FirstHalfAway++;
            }
        }
        //We use an array rather than overriding everytime
        $FirstHalfHomePrediction[$key] = round(($FirstHalfHome/$rowcount )*100);
        $FirstHalfDrawPrediction[$key] = round(($FirstHalfDraw/$rowcount )*100);
        $FirstHalfAwayPrediction[$key] = round(($FirstHalfAway/$rowcount )*100);
    } else {
        echo "0 results";
    }
}
$conn->close();
?>

索引.php

<table class="table">   
<thead> 
      <tr>
        <th>Home</th>
        <th>Away</th>
        <th>FirstHalf Prediction</th>
      </tr>
</thead>
<?php
include 'filtre1_danimarka.php';
include 'Firsthalfprediction.php';
// Added loop to iterate all data
foreach($array as $key => $data) {
    echo "<tr>";
    echo "<td>".$data['HOME']."</td>";
    echo "<td>".$data['AWAY']."</td>";
    echo "<td>1=".$FirstHalfHomePrediction[$key]." 0=".$FirstHalfDrawPrediction[$key]."\r 2=".$FirstHalfAwayPrediction[$key]."</td>";

    echo "</tr>";
}
?>
</table>