如何將特定的類應用於頁面上的導航鏈接？

Question

我的包含文件中有一個導航菜單，但是在整個站點中回顯菜單時遇到了麻煩。 如果我嘗試按原樣放置代碼，則頁面將標記出導航菜單應位於的位置。

如果我沒有在菜單前添加<?php函數，則代碼會有所工作。

我想知道如何在函數中回顯此代碼。 我嘗試將單引號更改為雙引號，但我認為菜單中li內的回顯讓我感到困惑。

一個解決方案會很棒。

謝謝

<?php
function nav() {
echo 
<nav class='container'>
<ul>
<li><a <?php if (strpos($_SERVER['PHP_SELF'], 'current-journal')) echo 'class="current"';?> href="current-journal">CURRENT JOURNAL<span class="sub-nav">Our latest and greatest!</span></a></li>
<li><a <?php if (strpos($_SERVER['PHP_SELF'], 'submit')) echo 'class="current"';?> href="submit">SUBMIT<span class="sub-nav">Your writing</span></a></li>
<li><a <?php if (strpos($_SERVER['PHP_SELF'], 'submission-guidelines')) echo 'class="current"';?> href="submission-guidelines">SUBMISSION GUIDELINES<span class="sub-nav">Everything you need to know is here</span></a></li>
<li><a <?php if (strpos($_SERVER['PHP_SELF'], 'contributors')) echo 'class="current"';?> href="contributors">CONTRIBUTORS<span class="sub-nav">See who\'s in our magazine\'s latest issue</span></a></li>
<li><a <?php if (strpos($_SERVER['PHP_SELF'], 'past-journals')) echo 'class="current"';?> href="past-journals">PAST JOURNALS<span class="sub-nav">Browse our issue archives</span></a></li>
<li><a <?php if (strpos($_SERVER['PHP_SELF'], 'blog')) echo 'class="current"';?> href="blog">BLOG<span class="sub-nav">Just a blog</span></a></li>
</ul>
</nav>
}?>

Answer 1

替換為：

<?php
function nav() { ?>   
    <nav class='container'>
    <ul>
    <li><a <?php if (strpos($_SERVER['PHP_SELF'], 'current-journal')) echo 'class="current"';?> href="current-journal">CURRENT JOURNAL<span class="sub-nav">Our latest and greatest!</span></a></li>
    <li><a <?php if (strpos($_SERVER['PHP_SELF'], 'submit')) echo 'class="current"';?> href="submit">SUBMIT<span class="sub-nav">Your writing</span></a></li>
    <li><a <?php if (strpos($_SERVER['PHP_SELF'], 'submission-guidelines')) echo 'class="current"';?> href="submission-guidelines">SUBMISSION GUIDELINES<span class="sub-nav">Everything you need to know is here</span></a></li>
    <li><a <?php if (strpos($_SERVER['PHP_SELF'], 'contributors')) echo 'class="current"';?> href="contributors">CONTRIBUTORS<span class="sub-nav">See who\'s in our magazine\'s latest issue</span></a></li>
    <li><a <?php if (strpos($_SERVER['PHP_SELF'], 'past-journals')) echo 'class="current"';?> href="past-journals">PAST JOURNALS<span class="sub-nav">Browse our issue archives</span></a></li>
    <li><a <?php if (strpos($_SERVER['PHP_SELF'], 'blog')) echo 'class="current"';?> href="blog">BLOG<span class="sub-nav">Just a blog</span></a></li>
    </ul>
    </nav>

您不需要在顯示html時回顯，只需在html之前關閉php標簽即可

希望這會有所幫助！

Answer 2

最簡單的是不使用初始回聲。 注意function名稱后的?>和<?php再次在底部添加為結束函數花括號。

<?php
function nav() {
?>
<nav class='container'>
<ul>
<li><a <?php if (strpos($_SERVER['PHP_SELF'], 'current-journal')) echo 'class="current"';?> href="current-journal">CURRENT JOURNAL<span class="sub-nav">Our latest and greatest!</span></a></li>
<li><a <?php if (strpos($_SERVER['PHP_SELF'], 'submit')) echo 'class="current"';?> href="submit">SUBMIT<span class="sub-nav">Your writing</span></a></li>
<li><a <?php if (strpos($_SERVER['PHP_SELF'], 'submission-guidelines')) echo 'class="current"';?> href="submission-guidelines">SUBMISSION GUIDELINES<span class="sub-nav">Everything you need to know is here</span></a></li>
<li><a <?php if (strpos($_SERVER['PHP_SELF'], 'contributors')) echo 'class="current"';?> href="contributors">CONTRIBUTORS<span class="sub-nav">See who\'s in our magazine\'s latest issue</span></a></li>
<li><a <?php if (strpos($_SERVER['PHP_SELF'], 'past-journals')) echo 'class="current"';?> href="past-journals">PAST JOURNALS<span class="sub-nav">Browse our issue archives</span></a></li>
<li><a <?php if (strpos($_SERVER['PHP_SELF'], 'blog')) echo 'class="current"';?> href="blog">BLOG<span class="sub-nav">Just a blog</span></a></li>
</ul>
</nav>
<?php
}?>

Answer 3

<?php
function nav() {
?>
<nav class='container'>
<ul>
    <?php if(strpos($_SERVER['PHP_SELF'],'current-journal' )) {echo "<li><a class='current' href='current-journal'>CURRENT JOURNAL<span class='sub-nav'>Our latest and greatest!</span></a></li>"; }?>
    <?php if(strpos($_SERVER['PHP_SELF'],'submit' )) {echo "<li> <a class='current' href='submit'>SUBMIT<span class='sub-nav'>Your writing</span></a></li>"}?>
    <?php if(strpos($_SERVER['PHP_SELF'],'submission-guidelines' )) {echo "<li> <a class='current' href="submission-guidelines'>SUBMISSION GUIDELINES<span class="sub-nav">Everything you need to know is here</span></a></li>";}?>
    <?php if(strpos($_SERVER['PHP_SELF'],'contributors' )) {echo "<li> <a class='current' href='contributors'>CONTRIBUTORS<span class='sub-nav'>See who\'s in our magazine\'s latest issue</span></a></li>";}?>
    <?php if(strpos($_SERVER['PHP_SELF'],'past-journals' )) {echo "<li> <a class='current' href='past-journals'>PAST JOURNALS<span class='sub-nav'>Browse our issue archives</span></a></li> ";}?>
    <?php if(strpos($_SERVER['PHP_SELF'],'blog' )) {echo "<li> <a class='current' href='blog'>BLOG<span class='sub-nav'>Just a blog</span></a></li>";}?>

</ul>
</nav>
<?php
}
?>

這應該做的工作。