我正在一个网站上工作,我想在其中检查空的序列化字符串。我在问题陈述中提到了我的问题。
我在 php 中使用的代码是:
<!-----------------------------LEFT DIV ------------------------------->
<div class="pickup-from-items-location" id="pickup_from_items_location">
<div class="timings">
<?php
$serialized = '';
for ($i = 0; $i < count($data['item']->item_logistic); $i++) {
if(strcmp($data['item']->item_logistic[$i]->logistics_type, "location_pickup") == 0)
{
$serialized .= strtolower($data['item']->item_logistic[$i]->logistics_times);
}
}
if($serialized != '')
{
echo
'<div class="icons_text">
<img src="/images/rsz_venueorange__1_.png">
<p class="mt-4 mb-3 heading_size">pickup from item\'s location </p>
</div>';
/*
echo '<span class="font-weight-bold how-can-this-text">' . "how can this item be received" . '</span>';
echo "<br>";
echo "<br>";
echo '<span class="font-weight-bold mb-3 ml-3">' . "pickup from item's location <br/>" . '</span>';
echo "<br>";
echo "<br>"; */
$unserialized = unserialize( $serialized );
foreach($unserialized as $key=>$value)
{
echo '
<div class="dates_timings_items_availability">
<div class="items_availability_weekdays">'. strtolower(date('l', strtotime($key))) .':</div>
<div class="items_availability_time"><span>'. $value['start'] .'</span></div>
<div class="delimiter">to</div>
<div class="items_availability_time"><span>'. $value['end'] .'</span></div>
</div>';
}
}
else
{
/* echo "<p style=\"font-style: italic;\">No information available</p>"; */
}
?>
</div>
</div>
<!-----------------------------RIGHT DIV ------------------------------->
<div class="deliver-to-my-location">
<div class="timings">
<?php
$serialized = '';
for ($i = 0; $i < count($data['item']->item_logistic); $i++) {
if(strcmp($data['item']->item_logistic[$i]->logistics_type, "delivery") == 0)
{
$serialized .= strtolower($data['item']->item_logistic[$i]->logistics_times);
}
}
if($serialized != '')
{
echo
'<div class="icons_text">
<img src="/images/rsz_deliveryicon__1_.png">
<p class="mt-4 heading_size mb-3" style="width:100%;">deliver to my location </p>
</div>';
/*
echo "<br>";
echo "<br>";
echo '<span class="font-weight-bold mb-3 ml-3">' . "deliver to my location <br/>" . '</span>';
echo "<br>";
echo "<br>"; */
$unserialized = unserialize( $serialized );
foreach($unserialized as $key=>$value) {
echo '
<div class="dates_timings_items_availability">
<div class="items_availability_weekdays">'. strtolower(date('l', strtotime($key))) .':</div>
<div class="items_availability_time"><span>'. date('g:i a', strtotime($value['start'])) .'</span></div>
<div class="delimiter">to</div>
<div class="items_availability_time"><span>'. date('g:i a', strtotime($value['end'])) .'</span></div>
</div>';
}
}
?>
</div>
</div>
问题陈述:
我想知道我需要应用什么逻辑,以便当左 div 为空时,右 div 应该向左移动。
当我使用上面的 php 代码时,左/右 div 在运行时变为空。
示例 <div class="pickup-from-items-location"> <div class="timings">
当 $serialized string 为 null 时变为空,因为我正在使用 if($serialized != '')
条件如上。
[[LEFT] [RIGHT]]
左 Div 是 <div class="pickup-from-items-location">
右 Div 是 <div class="deliver-to-my-location">
所以当 Left Div 为空时,Right Div 应该向左移动。
这可能吗?
[[RIGHT]]
最佳答案
是的,解决这个问题的最佳方法(在我看来)是根据 $serialized 的值修改 CSS。因此,当您不想显示 [LEFT] 时,只需不要在浏览器中显示它即可。理论上(取决于您的 html 和 css 的设置方式)当左侧栏未显示时,右侧应该填充它的位置。
为此;
首先,让我们将除 echo 之外的所有逻辑移到 HTML 之外。
<?php
$serialized = '';
for ($i = 0; $i < count($data['item']->item_logistic); $i++) {
if(strcmp($data['item']->item_logistic[$i]->logistics_type, "location_pickup") == 0) {
$serialized .= strtolower($data['item']->item_logistic[$i]->logistics_times);
}
}
?>
然后,我们将为 [LEFT] 添加我们的 HTML 和 PHP
<div class="pickup-from-items-location" style="<?php if(!empty($serialized)) echo 'display: none;'; ?>" id="pickup_from_items_location">
<div class="timings">
<div class="icons_text">
<img src="/images/rsz_deliveryicon__1_.png">
<p class="mt-4 heading_size mb-3" style="width:100%;">deliver to my location </p>
</div>
<?php
if(!empty($serialized)) {
$unserialized = unserialize( $serialized );
foreach($unserialized as $key=>$value) {
?>
<div class="dates_timings_items_availability">
<div class="items_availability_weekdays">'. strtolower(date('l', strtotime($key))) .':</div>
<div class="items_availability_time"><span>'. date('g:i a', strtotime($value['start'])) .'</span></div>
<div class="delimiter">to</div>
<div class="items_availability_time"><span>'. date('g:i a', strtotime($value['end'])) .'</span></div>
</div>
<?php
}
}
?>
</div>
</div>
我建议为 [RIGHT] 重复类似的结构
关于javascript - 如何检查 php 中的空序列化字符串?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52019415/