我做了一个时间表，但是我不确定如何使PHP代码在同一日期（Example of what I wanna do）具有2个块。我要用if来检查最后一个日期是否与新日期相同，如果正确，则只添加项目而不是标签，但问题是我暂时不知道该怎么做。 / p>
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.timeline-label+.timeline-item:not(.timeline-item-left):not(.timeline-item-right)+.timeline-item:not(.timeline-item-left):not(.timeline-item-right){margin-top:0}}@media (max-width: 768px){.timeline.timeline{width:100%;max-width:100%}.timeline.timeline .timeline-item{padding-left:72px;padding-right:0}.timeline.timeline .timeline-item.timeline-item-right,.timeline.timeline .timeline-item:nth-of-type(even):not(.timeline-item-left){padding-left:72px;padding-right:0}.timeline.timeline .timeline-item .timeline-event{width:100%}.timeline.timeline:before{left:42px;width:0;margin-left:-1px}.timeline.timeline .timeline-item{width:100%;margin-bottom:20px}.timeline.timeline .timeline-item:nth-of-type(even){margin-top:0}.timeline.timeline .timeline-item.timeline-item-left+.timeline-item:not(.timeline-item-left):not(.timeline-item-right),.timeline.timeline .timeline-item.timeline-item-right+.timeline-item:not(.timeline-item-left):not(.timeline-item-right){margin-top:0}.timeline.timeline .timeline-item.timeline-item-left+.timeline-item:not(.timeline-item-left):not(.timeline-item-right)+.timeline-item:not(.timeline-item-left):not(.timeline-item-right),.timeline.timeline .timeline-item.timeline-item-right+.timeline-item:not(.timeline-item-left):not(.timeline-item-right)+.timeline-item:not(.timeline-item-left):not(.timeline-item-right){margin-top:0}.timeline.timeline .timeline-item>.timeline-event{float:right !important}.timeline.timeline .timeline-item>.timeline-event:after,.timeline.timeline .timeline-item>.timeline-event:before{right:auto !important;border-left-width:0 !important}.timeline.timeline .timeline-item>.timeline-event:before{left:-15px !important;border-right-width:15px !important}.timeline.timeline .timeline-item>.timeline-event:after{left:-14px !important;border-right-width:14px !important}.timeline.timeline .timeline-item>.timeline-point{transform:translateX(-50%);left:42px !important;margin-left:0}.timeline.timeline .timeline-label{transform:translateX(-50%);margin:0 0 20px 42px}.timeline.timeline .timeline-label+.timeline-item:not(.timeline-item-left):not(.timeline-item-right){margin-top:0}.timeline.timeline .timeline-label+.timeline-item:not(.timeline-item-left):not(.timeline-item-right)+.timeline-item:not(.timeline-item-left):not(.timeline-item-right){margin-top:0}}.bg-red{background-color:#dd4b39 !important}.bg-gray{background-color:#d2d6de !important}.bg-primary{background-color:#3c8dbc !important}.bg-info{background-color:#00c0ef !important}.bg-success{background-color:#00a65a !important}.bg-warning{background-color:#f39c12 !important}.bg-danger{background-color:#f39c12 !important}.bg-blue{background-color:#0073b7 !important}.bg-green{background-color:#00a65a !important}.bg-purple{background-color:#605ca8 !important}
/*# sourceMappingURL=estilos.min.css.map */<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>
<link href="http://lsgob.us/estilos.css" rel="stylesheet"/>
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css" rel="stylesheet"/>
<div class="container-fluid">
<div class="col-md-12">
<div class="row">
<div class="timeline timeline-line-dotted">
<span class="timeline-label">
<i class="fa fa-clock-o bg-gray"></i>
</span>
<span class="timeline-label">
<span class="label bg-green">04 may. 2018</span>
</span>
<div class="timeline-item">
<div class="timeline-point bg-green">
<i class="fa fa-eye"></i>
</div>
<div class="timeline-event">
<div class="timeline-heading">
<h4>Hey</h4>
</div>
<div class="timeline-body">
<p>Hey</p>
</div>
<div class="timeline-footer">
<p class="text-right">Footer</p>
</div>
</div>
</div>
<span class="timeline-label">
<span class="label bg-green">04 may. 2018</span>
</span>
<div class="timeline-item">
<div class="timeline-point bg-green">
<i class="fa fa-eye"></i>
</div>
<div class="timeline-event">
<div class="timeline-heading">
<h4>Hey</h4>
</div>
<div class="timeline-body">
<p>Hey</p>
</div>
<div class="timeline-footer">
<p class="text-right">Footer</p>
</div>
</div>
</div> <span class="timeline-label">
<span class="label bg-green">04 may. 2018</span>
</span>
<span class="timeline-label">
<i class="fa fa-fw fa-history"></i>
</span>
</div>
</div>
</div>
</div>
答案 0 :(得分：1)
您需要将数据库中的上一个日期保存在一个变量中，并将其与数据库中的当前日期进行比较。更改后，您可以创建一个新标签。如果尚未更改，则可以将该项目添加到当前标签。看起来像这样（伪代码）：
$lastDate = null;
while ($row = ...) {
if ($lastDate != $row['date']) {
// change in date
closeCurrentLabel();
startNewLabel();
}
$lastDate = $row['date'];
addItemToLabel();
}