How to highlight current link in foreach loop - php

Question

I have a script that lists all the directories as links.
<?php
$dirs = array_filter(glob('../*'), 'is_dir');
?>
<ul style="float:left;">
<?php
foreach ($dirs as $nav) {
echo "<li><a href='$nav'>".basename($nav)."</a></li>";
}
?>
</ul>
I want to highlight the current directory, or give the current link a class or id. I understand that i need if statement to accomplish this like if(currentLink=thisLink) { // add span class somehow} else {// continue looping} , but I am not completely sure how to do this.
What would be the correct way to implement this ?

Answer 1

Yes you are right you need if condition in your loop.
Save your current link in a variable before loop.
<?php
$dirs = array_filter(glob('../*'), 'is_dir');
?>
<ul style="float:left;">
<?php
$currentlink='abc';
foreach ($dirs as $nav) {
if($nav==$currentlink)
$class='current';
else
$class='';
echo "<li><a class='$class' href='$nav'>".basename($nav)."</a></li>";
}

Answer 2

Without knowing the variables to compair, syntax wise you want to do something like this
<?php
foreach ($dirs as $nav){
$class = '';
if( $currentLink == $thisLink ) {
$class = 'class="highlight"';
}
echo '<li><a href="'.$nav.'" '.$class.' >'.basename($nav).'</a></li>';
}
?>
You can look in $_SERVER to get the current url in the browser and use some of that and the basename to fill those variables in.
http://php.net/manual/en/reserved.variables.server.php

Answer 3

to find out the current directory name you need:
basename(getcwd())
in foreach loop use this:
if(basename($nav) == basename(getcwd()))
{
// add span class
}

Answer 4

First you have to get current link. Store as $current_link
<?php
$dirs = array_filter(glob('../*'), 'is_dir');
$current_dir = 'store current directory here';
?>
<ul style="float:left;">
<?php
foreach ($dirs as $nav) {
if($nav == $current_dir) {
$class_name = 'active';
}
else {
$class = '';
}
echo "<li class='$class'><a href='$nav'>".basename($nav)."</a></li>";
}
?>
</ul>
Hope it will works.