怎么写条件？

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.