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需要一些帮助来完成我的代码它的作用是在我的数据库的表中搜索指向 parent_sections=2 的所有部分，然后在选择标记中打印结果我想要一些关于 sql 查询的帮助以检查 parent_sections =2 有孩子的，如果是这样，无论如何都要用 optgroup 样式打印它们，请检查下面的图片，他们解释了我需要什么。

PHP & SQL 代码：

<?php
include('../application_top.php');

function get_title_sections($id){
$sections_query = tep_db_query("select title_sections_detail from  sections_detail  where  id_sections = '" . (int)$id . "' and id_lang='0' order by title_sections_detail");
$result='';
    while ($sections = tep_db_fetch_array($sections_query)) {
 $result=$sections['title_sections_detail']; 
    }
    return $result;
}
?>


<form>
<select name="sections"> 
<option selected="selected" value="">Please choose an option</option>                           
        <?php   
        $sections_sql=tep_db_query("select p.id_sections, d.title_sections_detail as title from sections p, sections_detail d where  p.id_sections=d.id_sections and d.id_lang='0' and p.status_sections='1' and p.parent_sections='2'  order by d.title_sections_detail asc");         

    while ($sections = tep_db_fetch_array($sections_sql)) {
    $id_sec=$sections['id_sections'];
    $title_sec=get_title_sections($id_sec);
 ?>     
    <option value="<?php echo $id_sec ?>" ><?php echo $title_sec ?></option>

<?php }?>
</select>
</form>

SQL 表部分： 表部分

SQL 表sections_detail： 表sections_detail

结果：

结果

结果我需要：

结果我需要

4

1 回答 1

1

这是我的解决方案：

<?php

include('../application_top.php');

function load_sections($id_parent) {
    $sections_sql = tep_db_query("select p.id_sections, d.title_sections_detail as title 
                                    from sections p, sections_detail d 
                                   where p.id_sections=d.id_sections 
                                     and d.id_lang='0' 
                                     and p.status_sections='1' 
                                     and p.parent_sections='".$id_parent."'  
                                   order by d.title_sections_detail asc");
    $sect = array();
    while ($sections = tep_db_fetch_array($sections_sql)) {
        $sections['childs'] = load_sections($sections['id_sections']);
        $sect[] = $sections;
    }
    return($sect);
}

function print_section($sect) {
    if (count($sect['childs'])) {
        echo "<optgroup label=\"".htmlentities($sect['title'])."\">\n";
        foreach ($sect['childs'] as $subsect) {
            print_section($subsect);
        }
        echo "</optgroup>\n";
    } else {
        echo "<option value='".$sect['id_sections']."'>".htmlentities($sect['title'])."</option>\n";
    }
}

?>
<!DOCTYPE html>
<html>
<body>
    <form>
        <select name="sections"> 
            <option selected="selected" value="">Please choose an option</option>                           
            <?php foreach (load_sections(2) as $sect) print_section($sect); ?>
        </select>
    </form>
</body>
</html>

请注意，不允许嵌套操作组；只允许一个 optgroup 级别，您也可以在此处阅读。

于 2012-09-18T19:52:47.253 回答