[英]If OR not working
I have a statement set up to determine whether drupal blocks are present, and give a class depending on how many blocks are available. 我有一条语句来确定是否存在drupal块,并根据可用的块数给出一个类。
<?php if($page['sidebar_first'] || $page['sidebar_second']) {
$contentwid= "eleven";
} else {
$contentwid= "sixteen";
} ?>
<?php if($page['sidebar_first'] && $page['sidebar_second']) {
$contentwid= "seventeen";
} else {
$contentwid= "sixteen";
} ?>
<div id="content" class="<?php print $contentwid; ?> columns">
</div>
The second statement works fine, If there is a block in the first sidebar AND a block in the second sidebar, then the main content has a class of seventeen. 第二个语句工作正常,如果第一个侧边栏中有一个块,而第二个侧边栏中有一个块,则主要内容的类为17。
The problem is with the first statement for OR ( || ). 问题在于OR(||)的第一个语句。 It doesn't matter if there is a block in either sidebar, the content is always given a class of sixteen, which is full width, and pushes the sidebar content to the bottom.
侧边栏中是否有块都无关紧要,始终将内容的类别设为16,即全角,并将侧边栏内容推到底部。
I know its detecting sidebar blocks correctly because the second statement works perfectly. 我知道它可以正确检测到侧边栏,因为第二条语句可以正常工作。 I have set up everything else correctly, and have traced it back to this OR statement, which always seems to result in FALSE (sixteen).
我已经正确设置了所有其他内容,并将其追溯到此OR语句,该语句似乎总是导致FALSE(十六)。
I've tried || 我尝试过|| and OR, but as far as I know, they are no different, just user preference right?
和OR,但据我所知,它们没有什么不同,只是用户偏好设置正确吗?
I'm stumped. 我很沮丧
It's executing the first if
(the or
) and setting $contentwid
correctly, but then it still executes the second if
(the and
) and failing, so executing the else
for that, which resets $contentwid
to "sixteen" 它正在执行第一个
if
(the or
)并正确设置$contentwid
,但随后它仍将执行第二个if
(the and
)并失败,因此为此执行else
,这会将$contentwid
重置$contentwid
“十六”
<?php if($page['sidebar_first'] || $page['sidebar_second']) {
$contentwid= "eleven";
} else {
$contentwid= "sixteen";
} elseif($page['sidebar_first'] && $page['sidebar_second']) {
$contentwid= "seventeen";
} else {
$contentwid= "sixteen";
} ?>
though you might want to reverse the "and" and "or" to prevent the and
from failing 尽管您可能想反转“ and”和“ or”以防止
and
失败
<?php if($page['sidebar_first'] && $page['sidebar_second']) {
$contentwid= "seventeen";
} elseif($page['sidebar_first'] || $page['sidebar_second']) {
$contentwid= "eleven";
} else {
$contentwid= "sixteen";
} ?>
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