how to write the condition? - php

Question

$tree = taxonomy_get_tree($vid);
print "<li>"; // 1 line
foreach ($tree as $term ) { // 2 lines
$diffdepth=0;
if ($term->depth > $depth) {
print "<ul class='haschild'><li>";
$depth = $term->depth;
}
the above is the original code, now I want according to $term->depth > $depth make a condition to output.( print "<li>"; ) this line.
namely,
if ($term->depth > $depth) {
echo '<li class="parent">';
}
else {
print "<li>";
}
but $term->depth can use after foreach loop, but i want to use it at 1 line, how do i do?

Answer 1

Instead of printing in-line, assign your desired output to variables and then send it to the browser after the logic is complete.
$tree = taxonomy_get_tree($vid);
$parent = ""; // 1 line
$child = "";
foreach ($tree as $term) { // 2 line
$diffdepth=0;
if ($term->depth > $depth) {
$parent = "<li class='parent'>";
$child .= "<ul class='haschild'><li>";
$depth = $term->depth;
} else {
$parent = "<li>";
}
}
echo $parent . $child;
Please note you'll need to finish this up by adding all the applicable </li>s and whatnot, but this should get you started.

Answer 2

Use a counter:
$tree = taxonomy_get_tree($vid);
$counter = 0;
foreach ($tree as $term)
{
...
if ($term->depth > $depth)
{
if ($counter == 0) { echo '<li class="parent">'; }
else { echo '<li>'; }
print "<ul class='haschild'><li>";
$depth = $term->depth;
}
...
$counter++;
}
If you need to write more differences based on your condition, you can turn tha above into:
$tree = taxonomy_get_tree($vid);
$counter = 0;
foreach ($tree as $term)
{
...
if ($term->depth > $depth)
{
if ($counter == 0) { echo '<li class="parent">'; }
print "<ul class='haschild'><li>";
$depth = $term->depth;
}
else
{
if ($counter == 0) { echo '<li>'; }
...
}
...
$counter++;
}

Answer 3

if you want to build something like parent child hierarchy then you should check it by click here