我的gmail帐户中有一些标签嵌套了标签，比如这样（工作/编程）。我在PHP上开发，我有这段代码用于显示标签列表
$service_gmail = new Google_Service_Gmail( $client );
$lab = ( ! empty( $_GET['label'] ) ) ? $_GET['label'] : 'INBOX';
$labelsResponse = $service_gmail->users_labels->listUsersLabels('me');
$labels = array_merge($labels, $labelsResponse->getLabels());
<?php if ( ! empty( $labels ) ) {
foreach ( $labels as $key => $label ) :
?>
<tr>
<td width="1%"><span class="num"><?php echo ( $key + 1 ); ?></span></td>
<td><h5><?php echo $label['name'];?></h5>
<small><?php echo $label['type'];?></small></td>
<td><?php echo $service_gmail->users_labels->get( 'me', $label['id'] )->getMessagesUnread();?></td>
<td><?php echo $service_gmail->users_labels->get( 'me', $label['id'] )->getMessagesTotal(); ?></td>
</tr>
<?php
endforeach;
}
?>
但是我想把嵌套标签显示为主标签的子标签，比如这个
Work
- accounting
- programming
- ......
Social
- facebook (Social/facebook)
- twitter (Social/twitter)
所以有没有可能在没有硬编码的情况下做到这一点，所以我需要所有的东西都是动态的？
您将有两个数组$main_labels和$sub_labels。在foreach循环中，您将看到标签名称是否包含字符"/"。如果是，您将用"/"来解释（）标签名称。如果第一部分（在/之前）已经存在，那么您将在$main_labels中进行搜索。如果是，您将把第二部分存储在$sub_labels中。最后，为了回显标签，您将在$main_labels数组上循环，在循环中，您将看到$sub_labels[$main_lbl_key]是否为空。如果它不为空，则存在子类别，并且您必须在$sub_labels[$main_lbl_key]上编写另一个循环来回显它们。
例如：
<?php
$service_gmail = new Google_Service_Gmail( $client );
$lab = ( ! empty( $_GET['label'] ) ) ? $_GET['label'] : 'INBOX';
$labelsResponse = $service_gmail->users_labels->listUsersLabels('me');
$labels = array_merge($labels, $labelsResponse->getLabels());
$main_labels = $sub_labels = array();
function ifMainLabelExists($lbl) {
global $main_labels;
foreach ($main_labels as $k => $l) {
if (strcmp($lbl['name'], $l) === 0) {
return $k;
}
}
return -1;
}
if ( ! empty( $labels ) ) {
foreach ( $labels as $key => $label ) {
if (strpos($label['name'], '/') !== false) {
$label_parts = explode('/', $label['name']); // break label name at character '/'
if (count($label_parts) > 1) {
$m = ifMainLabelExists($label_parts[0]);
if ($m !== -1) { // main label already exists
$label['name'] = $label_parts[1];
$sub_labels[$m][] = $label;
} else { // main label does not exist already
$label['name'] = $label_parts[0];
$main_labels[] = $label;
$m = count($main_labels) - 1; // will be inserted at last index
$label['name'] = $label_parts[1];
$sub_labels[$m][] = $label;
}
}
} else {
$main_labels[] = $label;
}
}
}
// now echo them