Question

create.php

我要做的第一件事是创建并将其中的每一个发送到我表中的自己的列。

    $subCategoryDirectory = $_POST["subCategoryDirectory"];
    $subCategoryDirectory_1 = $subCategoryDirectory[0];
    $subCategoryDirectory_2 = $subCategoryDirectory[1];
    $subCategoryDirectory_3 = $subCategoryDirectory[2];
    $subCategoryDirectory_4 = $subCategoryDirectory[3];
    $subCategoryDirectory_5 = $subCategoryDirectory[4];


+----------------------+------------------------+------------------------+------------------------+------------------------+--+
| subCategoryDirectory | subCategoryDirectory_2 | subCategoryDirectory_3 | subCategoryDirectory_4 | subCategoryDirectory_5 |  |
+----------------------+------------------------+------------------------+------------------------+------------------------+--+
| selection            | selection2             | selection3             | selection4             | selection5             |  |
+----------------------+------------------------+------------------------+------------------------+------------------------+--+
|                      |                        |                        |                        |                        |  |
+----------------------+------------------------+------------------------+------------------------+------------------------+--+
|                      |                        |                        |                        |                        |  |
+----------------------+------------------------+------------------------+------------------------+------------------------+--+

update.php

更新时我调用并将每个调用分配给变量。

$selectUpdate = "SELECT * from table where id=$id LIMIT 1";
$selectUpdateDisplay =  $wpdb->get_results($selectUpdate, ARRAY_A);

foreach ($selectUpdateDisplay as $sqlStuf){    
$cat1 = $sqlStuf[subCategoryDirectory];
$cat2 = $sqlStuf[subCategoryDirectory_2];
$cat3 = $sqlStuf[subCategoryDirectory_3];
$cat4 = $sqlStuf[subCategoryDirectory_4];
$cat5 = $sqlStuf[subCategoryDirectory_5];
}

所以我有上面的表格，我想在更新时回到选择表格中作为“选中/突出显示”。现在，当我更新时，我丢失了初始上传的值。

<select id="subCategoryDirectory" name="subCategoryDirectory[]" style="width:100%;" multiple>
        <option value="<?php echo $cat1; ?>"><?php echo $cat1; ?></option>
<optgroup label="Advertising & Media">
        <option value="Advertising &amp; Marketing">Advertising &amp; Marketing</option>
        <option value="Advertising, Marketing, Promotions">Advertising, Marketing, Promotions</option>
</optgroup>
<optgroup label="Transportation">
        <option value="Delivery Service">Delivery Service</option>
        <option value="Limousine Service ">Limousine Service </option>
        <option value="Taxicab">Taxicab</option>
        <option value="Transportation">Transportation</option>
</optgroup>
</select>

每次我尝试回声时，我都会想到一个单一的值。这些都没有被选中。我应该测试一下，看看每个变量是否都是空的并且做得很长？我是否想过这个？

更新

array(1) {
  [0]=>
  array(32) {
    ["id"]=>
    string(3) "112"
    ["nameDirectory"]=>
    string(14) "test to delete"
    ["nameDirectoryAbv"]=>
    string(4) ""
    ["descriptionDirectory"]=>
    string(14) ""
    ["summaryDirectory"]=>
    string(14) ""
    ["addressDirectoryStreet"]=>
    string(11) ""
    ["addressDirectorySuiteNumber"]=>
    string(0) ""
    ["addressDirectoryNumber"]=>
    string(5) ""
    ["addressDirectoryPrefix"]=>
    string(0) ""
    ["addressDirectoryTwo"]=>
    string(0) ""
    ["zipDirectory"]=>
    string(5) ""
    ["websiteDirectory"]=>
    string(21) ""
    ["facebookDirectory"]=>
    string(21) ""
    ["twitterDirectory"]=>
    string(21) ""
    ["linkedinDirectory"]=>
    string(21) ""
    ["emailDirectory"]=>
    string(13) ""
    ["contactNameDirectory"]=>
    string(4) ""
    ["phoneDirectory"]=>
    string(12) ""
    ["faxDirectory"]=>
    string(12) ""
    ["categoryDirectory"]=>
    string(0) ""
    ["subCategoryDirectory"]=>
    string(23) "Advertising & Marketing"
    ["subCategoryDirectory_2"]=>
    string(34) "Advertising, Marketing, Promotions"
    ["subCategoryDirectory_3"]=>
    string(0) ""
    ["subCategoryDirectory_4"]=>
    string(0) ""
    ["subCategoryDirectory_5"]=>
    string(0) ""
    ["cityDirectory"]=>
    string(11) ""
    ["stateDirectory"]=>
    string(2) ""
    ["hoursDirectory"]=>
    string(13) ""
    ["image_1"]=>
    string(80) ""
    ["image_2"]=>
    string(92) ""
    ["image_3"]=>
    string(85) ""
    ["image_4"]=>
    string(85) ""
  }
}

Answer 1

为您的subCategoryDirectories创建一个数组：

$cat = array($sqlStuf[subCategoryDirectory_1],$sqlStuf[subCategoryDirectory_2], ...);

除了foreach之外，在循环中使用数组（for或is_set）将允许您仅显示已设置的数组项：

<强>的foreach ：

<?php foreach ($cat as $item) { if (isset($item)) { echo "<option value=\""; echo "$item\">$item</option>\n"; } } ?>

作为：

<?php for ($i = 0; $i <= 4;) { if (isset($cat[$i])) { echo "<option value=\""; echo "$cat[$i]\">$cat[$i]</option>\n"; } $i++; } ?>

PHP回显从表单中选择的多个

1 个答案: