Modifying the breadcrumb variable at will
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Setting breadcrumbs manually
Here's the manual way to set breadcrumbs. drupal_set_breadcrumb() expects an array of links:
<?php
$links = array(l(t('about'), 'about'), l(t('bios'), 'about/bios'));
drupal_set_breadcrumb($links);
?>will create a breadcrumb like
about >> bios
Of course if you put this code in page.tpl.php then every page will have the same breadcrumb (doh!). So, use the manual method in the body of an individual page or node. Or, figure out a more dynamic way to change all breadcrumbs in page.tpl.php.
Remove the "Home" breadcrumb link dynamically
Here is some code to modify the breadcrumb for every page. Insert this code anywhere in your page.tpl.php file to get rid of the "Home" link in the breadcrumb.
<?php
$breadcrumb = drupal_get_breadcrumb();
if ($breadcrumb[0] == 'home'){
// shift out first element
array_shift($breadcrumb);
drupal_set_breadcrumb($breadcrumb);
}
?>If before the breadcrumb was Home >> About >> Bios
After the above code is inserted into page.tpl.php the breadcrumb would be About >> Bios
<?php print $breadcrumb ?>
<?phpprint $breadcrumb
?>
I had to point this out.
I had to point this out. Common error in the code above #1: = means assignment, == means comparison. The if clause above assigns a value, it doesn't compare.
Secondly, using the var $breadcrumb overwrites the phpTemplate string var for the breadcrumb.
This code should work:
<?php$breadcrumb_array = drupal_get_breadcrumb();
if ($breadcrumb_array[0] == 'home'){
// shift out first element
array_shift($breadcrumb_array);
drupal_set_breadcrumb($breadcrumb_array);
}
?>
--
Jakob Persson
web design and usability consulting
http://www.jakob-persson.com
Does this actually work?
Does this actually work for anyone? It seems to me that $breadcrumb_array[0] never == "home". Because of all the link code on either side of the word Home, element 0 in the array contains "Home" (note the capital), but doesn't equal "home".
Even with the above adjustments, the following simply prints the original breadcrumb trail, including home.
$breadcrumb_array = drupal_get_breadcrumb();if (strpos($breadcrumb_array[0], 'Home')) {
// shift out first element
array_shift($breadcrumb_array);
drupal_set_breadcrumb($breadcrumb_array);
print $breadcrumb_array[0];
};
print $breadcrumb;
Theme function
jeff: You need to make a theme function override. By the time the var is available in the template it is a string.
<?phpfunction themename_breadcrumb($breadcrumb) {
if (!empty($breadcrumb)) {
array_shift($breadcrumb); //gets rid of "Home"
return '<div class="breadcrumb">' . implode(' » ', $breadcrumb) . '</div>';
}
}
?>
--
Jakob Persson
web design and usability consulting
http://www.jakob-persson.com
Breadcrumb content
This:
$breadcrumb[0] == 'home'
is just a wrong way to picture breadcrumb data. The array elements are links: resulting from l function calls or coding.