Array: how to find a parent key when using a child key?
| From: | Scott Fletcher | Date: | Thu, 29 Sep 2005 14:32:54 +0000 |
| Subject: | Array: how to find a parent key when using a child key? | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-223411@lists.php.net to get a copy of this message | ||
I'm using the recursive function and it use the foreach() loop. I can
figure out how to use the current key but I could not figure out how to use
the parent's key. Can anyone point out to what I'm missing here?
Just look at the "//Parent Key - How??" comment in the script... I'm not
sure what php function that can allow us to walk up the array like
array_walk() for example. Thanks...
[code]
$array = array
(
'NEWSFEED' => array
(
'0' => array
(
'MESSAGE' => array
(
'0' => array
(
'COMMENT' => array
(
'0' => array
(
'VALUE' => 'Comment #1'
)
)
),
'1' => array
(
'COMMENT' => array
(
'0' => array
(
'VALUE' => 'Comment #2'
)
)
)
)
)
)
);
function GetXmlStr($tree)
{
$branch_level = 0; //Tree's branches level...
XmlTreeDecompile($tree, $branch_level);
return htmlentities($str1);
}
function XmlTreeDecompile($tree, $branch_level)
{
$branch_level++;
foreach($tree as $key => $value)
{
if ($branch_level % 2 != 0) { //xml name-tag counter...
if(!(is_array($value))) {
echo str_repeat("
",$branch_level)."<".$key.">".$value."</".$key.">"."\r\n";
} else {
echo str_repeat("
",$branch_level)."<".$key.">"."\r\n";
XmlTreeDecompile($value, $branch_level);
echo str_repeat("
",$branch_level)."</".$key.">"."\r\n";
$str1 = $key;
}
} else { //Xml tag's name...
//echo $key." #<br>";
if ($key != 0) {
//Parent Key - How??
echo str_repeat("
",($branch_level-1))."</MESSAGE###>"."\r\n";
echo str_repeat("
",($branch_level-1))."<MESSAGE###>"."\r\n";
}
XmlTreeDecompile($value, $branch_level);
}
}
}
$xml_string = GetXmlStr($array);
//echo "\n<br><br>\n".$xml_string;
[/code]