如何設置HTML選擇框的設定值與PHP

Question

我有一個下一塊模板：

<select name="interest"> 
    <option value="seo">SEO и Блоговодство</option> 
    <option value="auto">Авто</option> 
    <option value="business">Бизнес</option> 
    <option value="design">Дизайн</option> 
    ... 

和$result['interest']店產生的價值。

如何將option元素標記爲使用PHP選擇的元素？

謝謝！

Answer 1

手動方式.....

<select name="interest"> 
    <option value="seo"<?php if($result['interest'] == 'seo'): ?> selected="selected"<?php endif; ?>>SEO и Блоговодство</option> 
    ..... 

的更好的方式是遍歷利益

$interests = array(
    'seo' => 'SEO и Блоговодство', 
    'auto' => 'Авто', 
    .... 
); 

<select name="interest"> 
<?php foreach($interests as $var => $interest): ?> 
<option value="<?php echo $var ?>"<?php if($var == $result['interest']): ?> selected="selected"<?php endif; ?>><?php echo $interest ?></option> 
<?php endforeach; ?> 
</select> 

Answer 2

<select name="interest"> 
    <option value="seo"<?php if($result['interest'] == 'seo'){ echo ' selected="selected"'; } ?>>SEO</option> 
    <option value="auto"<?php if($result['interest'] == 'auto'){ echo ' selected="selected"'; } ?>>Auto</option> 
    <option value="business"<?php if($result['interest'] == 'business'){ echo ' selected="selected"'; } ?>>Business</option> 
    <option value="design"<?php if($result['interest'] == 'design'){ echo ' selected="selected"'; } ?>>Design</option> 
</select> 

Answer 3

<?php 
$interests = array('seo' => 'SEO и Блоговодство', 'auto' => 'Aвто', 'business' => 'Бизнес', ...); 
?> 
<select name="interest"> 
<?php 
foreach($interests as $k => $v) { 
?> 
    <option value="<?php echo $k; ?>" <?php if($k == $result['interest']) ?> selected="selected" <?php } ?>><?php echo $v;?></option> 
<?php 
} 
?> 
</select> 

Answer 4

<select name="interest"> 
<option value="seo" <?php echo $result['interest'] == 'seo' ? 'selected' : ''?> >SEO и Блоговодство</option> 
<option value="auto" <?php echo $result['interest'] == 'auto' ? 'selected' : ''?>>Авто</option> 
<option value="business" <?php echo $result['interest'] == 'business' ? 'selected' : ''?>>Бизнес</option> 
<option value="design" <?php echo $result['interest'] == 'design' ? 'selected' : ''?>>Дизайн</option> 

Answer 5

<?php 
$list='<select name="interest"> 
    <option value="seo">SEO и Блоговодство</option> 
    <option value="auto">Авто</option> 
    <option value="business">Бизнес</option> 
    <option value="design">Дизайн</option> 
    ...'; 
echo str_replace('value="' . $result['interest'] . '"','value="' . $result['interest'] . '" selected',$list); 

？> 這涉及到製作一個包含你的列表的字符串，然後使用字符串替換函數來找到正確的選項並將選擇的內容添加到標籤。如果使用XHTML，則需要使用selected =「selected」。

http://sandbox.onlinephpfunctions.com/code/37eb8f5a213fe5a252cd4da6712f3db0c5558ae3

Answer 6

你需要讓PHP插入selected="selected"屬性爲適當<option>標籤，就像這樣：

<?php $result=$userRow['ad_type']; ?> 
      <select class="form-control" name="ad_type"> 
       <option <?php if($result == 'text'){ echo ' selected="selected"'; } ?> value="text">Text</option> 
       <option <?php if($result == 'image'){ echo ' selected="selected"'; } ?> value="image">Image</option> 
       <option <?php if($result == 'video'){ echo ' selected="selected"'; } ?> value="video">Video</option> 
       <option <?php if($result == 'htmladsense'){ echo ' selected="selected"'; } ?> value="htmladsense">Html Adsense</option> 
      </select>