动态标题和表格单元格-PHP中的tr和td

Question

我在做动态表时遇到问题

我的表结构如下：

======================================================================
tender_id | coc | datasheet | datecode | shelflife | Suppliername
======================================================================
   201    |  No |   Yes      |     Yes  |     No   |  Supplier1
   201    | Yes |   No       |     Yes  |     No   |  Supplier2
   201    | No  |   No       |     No   |     No   |  Supplier3

我在PHP中的预期结果是

=============================================
 COC | Datasheet | Date Code | Supplier Name
=============================================
   -     Yes          Yes       Supplier1
  Yes    -            Yes       Supplier2

结果应仅在值是“是”时显示。 如果所有值均为“否”，则甚至不显示标题。 如果“一个”值是“是”而“一个”值是“否”，则还应显示标题。 例如，在上述条件下，所有供应商的保质期值为“否”。 在这种情况下，甚至标题也不会显示。 我已经尝试了一些脚本，但是存在一些问题。

这是我尝试的脚本：

$sql_shelf = "SELECT tender_id, suppliername, coc, date_code, shelf_life , datasheet FROM comparitive_statement1 WHERE (coc='Yes' OR technical_compliance='Yes' OR date_code='Yes' OR shelf_life='Yes' OR datasheet='Yes') tender_id='$tender_id' group by suppliername";

    $result = mysql_query($sql_shelf) or die($sql_shelf."<br/><br/>".mysql_error());
    $i = 0;
    while ($list = mysql_fetch_array($result)) {
    if($i == 0){
    echo '<tr>';
    $sh = $list['shelf_life'];
    if ($sh=="No") {
    } else {
    echo '<td><b>Shelf Life</b></td>';
    }
      echo '</tr>';
      $i++;
      }

    echo '<tr>';
    $sl1 = $list['shelf_life'];
    if ($sl1=="No") {
    } else {
    echo "<td>{$list['shelf_life']}</td>";\
    echo "</tr>";
    }
     ++$i;
     }

脚本有点长，所以我刚刚放入了与保质期有关的记录。

Answer 1

不是说这是最有效的方法，而是...

// $data is the array you have after while ($list = mysql_fetch_array($result)) { $data[]=$row; }
$data = [
    [ 'tender_id'=>201, 'coc'=>'No',  'datasheet'=>'Yes', 'datecode'=>'Yes', 'shelflife'=>'No', 'Suppliername'=>'Supplier1' ],
    [ 'tender_id'=>201, 'coc'=>'Yes', 'datasheet'=>'No',  'datecode'=>'Yes', 'shelflife'=>'No', 'Suppliername'=>'Supplier2' ],
    [ 'tender_id'=>201, 'coc'=>'No',  'datasheet'=>'No',  'datecode'=>'No',  'shelflife'=>'No', 'Suppliername'=>'Supplier3' ]
];

// remove all 'No' fields
$data = array_map(
    function($e) {
        return array_filter($e, function($f) { return 'No'!==$f; });
    },
    $data
);
/* => $data == [ 
    [ 'tender_id'=>201'datasheet'=>'Yes''datecode'=>'Yes''Suppliername'=>'Supplier1'],
    [ 'tender_id'=>201'coc'=>'Yes''datecode'=>'Yes''Suppliername'=>'Supplier2'],
    [ 'tender_id'=>201'Suppliername'=>'Supplier3']
]
*/

// now get an array of the keys present in any row
$fields = array_reduce(
    $data,
    function($carry, $item) {
        return $carry + array_keys($item);
    },
    []
);
/* => $fields == [ 'tender_id', 'datasheet', 'datecode', 'Suppliername']
  after the filter no row in $data contained an element 'shelflife'=>... 
  so it's also not present in $fields
*/

// make a "template" for empty fields
$fields = array_combine( $fields, array_fill(0, count($fields), ' - '));
/* => $fields == [ 'tender_id'=>' - ', 'datasheet'=>' - ', 'datecode'=>' - ', 'Suppliername'=>' - '] */

// now merge all rows in $data with this template, i.e. if a field is missing in a row add the default element
$data = array_map(
    function($e) use ($fields) {
        return $e + $fields;
    },
    $data
);
/* => $data == [
    [ 'tender_id'=>201, 'datasheet'=>'Yes','datecode'=>'Yes', 'Suppliername'=>'Supplier1'],
    [ 'tender_id'=>201, 'coc'=>'Yes', 'datecode'=>'Yes', 'Suppliername'=>'Supplier2', 'datasheet'=>' - '],
    [ 'tender_id'=>201, 'Suppliername'=>'Supplier3', 'datasheet'=>' - ', 'datecode'=>' - ']
]
*/

现在，您可以使用$ data 和 $ fields来打印表。

Answer 2

$sql_shelf = "SELECT * FROM comparitive_statement1 WHERE (coc='Yes' OR datecode='Yes' OR shelflife='Yes' OR datasheet='Yes') group by suppliername";
$result = mysql_query($sql_shelf) or die($sql_shelf."<br/><br/>".mysql_error());
$output="<table border='1'>";
$output .= "<tr>
    <td>COC</td>
    <td>Datasheet</td>
    <td class='deleteColumnDatecode'>DateCode</td>
    <td class='deleteColumn'>Shelf Life</td>
    <td>SupplierName</td></tr>";

$shelflife = false;
$datecode=false;
while ($list = mysql_fetch_array($result)) {
    $output .= "<tr>
        <td>".$list['coc']."</td>
        <td>".$list['datasheet']."</td>
        <td class='deleteColumnDatecode'>".$list['datecode']."</td>
        <td class='deleteColumn'>".$list['shelflife']."</td>
        <td>".$list['Suppliername']."</td>
        </tr>";


    if( strcasecmp($list['shelflife'],"Yes")== 0) {
        $shelflife = true;
    }

    if( strcasecmp($list['datecode'],"Yes")== 0) {
        $datecode = true;
    }

 }

 if( $shelflife ){
     $output = str_replace( 'deleteColumn', '', $output);
 } 

 if( $datecode ){    
     $output = str_replace( 'deleteColumnDatecode', '', $output);
 } 

 echo $output;
?>
<html>
<head>
    <title>comparitive_statement1</title>
    <style>
    td.deleteColumn,td.deleteColumnDatecode {
         display: none;
     }
    </style>
</head>
</html>

Answer 3

希望这能解决您的问题

    <?php
    $table_items = array("coc","datasheet","datecode","shelflife ");
    foreach($table_items as $value){
        $result = mysqli_num_rows(mysqli_query($con,"SELECT * FROM comparitive_statement1 WHERE ".$value." = 'Yes'"));
        if($result>0){
            echo "<td>".$result."</td>";
            }
    }
    ?>