PHP Array to breadcrumb UL list
Breadcrumb is navigation aid used in user interfaces. It gives users a way to keep track of their locations within programs or documents.
A good breadcrumb navigation should be build with UL dan LI tag this is good for SEO tweak.
Breadcrumb structure
Below is the implementation in PHP scripting language, i made as a function so you can use this easily
/**
* Creates recursively a nested HTML UL of array keys.
* @param array $array Array
* @return string Nested UL string
*/
function array2breadcrumb($array=array(),&$depth=0) {
$depth++; //echo $depth.' ';
$recursion=__FUNCTION__;
if (empty($array)) return '';
$out=($depth==1)?('<ul id="breadcrumb">'):('<ul>')."\n";
if (is_array($array))
foreach ($array as $key => $elem){
$arr = explode('|',$key); //echo $label;
if (!isset($arr[1]))
$uri = ''.$arr[0].'';
else
$uri = anchor($arr[0], $arr[1], 'title="'.$arr[1].'"');
if ($uri=='0') $uri='';
$out .= '<li>'.$uri.$recursion($elem,$depth).'</li>'."\n";
}
else
return $array;
$out .= '</ul>'."\n";
return $out;
}
$array = array('/parent|Parent page'=>array('/parent/sub|Sub page'=>array('Page detail')));
echo array2breadcrumb($array);
Ok, that’s all .. happy coding 
