I have a function like this:
function colorscheme( $color, $url ) {
return array( $color, $url );
}
How can I fetch them and display them like this (this is an example, it doesn't work):
function fetch_colorscheme() {
foreach() {
echo "<ul><li>$color</li><li>$url</li></ul>";
}
}
Thank you!!
Try this:
$scheme = colorscheme('color', 'url');
echo '<ul>';
foreach ($scheme as $value) {
echo '<li>' . $value . '</li>';
}
echo '</ul>';
Edit:
For multiple color schemes, you can do this:
$schemes = array(
colorscheme('color 1', 'url 1'),
colorscheme('color 2', 'url 2')
);
function fetch_colorscheme($schemes) {
echo '<ul>';
foreach ($schemes as $scheme) {
foreach ($scheme as $value) {
echo '<li>' . $value . '</li>';
}
}
echo '</ul>';
}
I'm sorry, I'm not able to test this at the moment.
Related
I have very little experience with PHP, but I'm taking a class that has PHP review exercises. One of them is to create a function that uses a loop to return all values of an array except the first value in an unordered list. I'm assuming there's a way to do this using a foreach loop but cannot figure out how. This is what I had but I feel like I am far off:
<?php
$array = array('myName' => 'Becca', 'favColor' => 'violet', 'favMovie' => 'Empire Strikes Back', 'favBook' => 'Lullaby', 'favWeb' => 'twitter.com');
$myName = $array['myName'];
$favColor = $array['favColor'];
$favMovie = $array['favMovie'];
$favBook = $array['favBook'];
$favWeb = $array['favWeb'];
echo '<h1>' . $myName . '</h1>';
function my_function() {
foreach($array == $myName){
echo '<ul>'
. '<li>' . $favColor . '</li>'
. '<li>' . $favMovie . '</li>'
. '<li>' . $favBook . '</li>'
. '<li>' . $favWeb . '</li>'
. '</ul>';
}
}
my_function();
?>
The correct syntax of foreach is
foreach (array_expression as $key => $value)
instead of
foreach($array == $myName){
function that uses a loop to return all values of an array except the
first value
I'm not sure, what exactly you mean by except the first value. If you are trying to remove first element from the array. Then you could have used array_shift
If you are supposed to use loop then
$count = 0;
foreach ($array as $key => $value)
{
if ($count!=0)
{
// your code
}
$count++;
}
Change the code to following
<?php
$array = array('myName' => 'Becca', 'favColor' => 'violet', 'favMovie' => 'Empire Strikes Back', 'favBook' => 'Lullaby', 'favWeb' => 'twitter.com');
$myName = $array['myName'];
echo '<h1>' . $myName . '</h1>';
function my_function($array)
{
$count = 0;
echo "<ul>";
foreach($array as $key => $value)
{
if($key != "myName")
{
echo "<li>".$value."</li>";
}
}
echo "</ul>";
}
my_function($array);
I'm Trying to format the output of an array using php but I can't seem to get the keys and values on the same line. I've listed the code that I'm using to display the keys and values but this code outputs the keys and values on different lines
function olLiTree($tree)
{
echo '<pre>';
foreach($tree as $key => $item) {
if (is_array($item)) {
echo '<pre>', $key ;
olLiTree($item);
echo '</pre>';
} else {
echo '<pre>', $item, '</pre>';
}
}
echo '</ul>';
}
print(olLiTree($results));
Use <ul> <li> .... </li></ul>. Also remove comma(,) because PHP use dot(.) for concat string.
function olLiTree($tree)
{
echo '<ul>';
foreach($tree as $key => $item) {
if (is_array($item)) {
echo '<li>'. $key ;
olLiTree($item);
echo '</li>';
} else {
echo '<li>' .$item. '</li>';
}
}
echo '</ul>';
}
print(olLiTree($results));
You use comma , instead of dot .
for string concatenation php use dot
function olLiTree($tree)
{
echo '<pre>';
foreach($tree as $key => $item) {
if (is_array($item)) {
echo '<pre>'. $key ;
olLiTree($item);
echo '</pre>';
} else {
echo '<pre>' . $item. '</pre>';
}
}
echo '</ul>';
}
print(olLiTree($results));
I have an array with some items. Each array could have (or not) an subarray, also with some items.
How can I call the subarray in a loop? It is difficult to describe, here is the code. I know the code/syntax is not correct, but the syntax should clarify my problem:
<?php
$subitemsA = array(
'subA1' => array('num'=>65, 'text'=>'Labor', 'url'=>'#'),
'subA2' => array('num'=>44, 'text'=>'Rare', 'url'=>'#'),
);
$subitemsB = array(
'subB1' => array('num'=>0, 'text'=>'subB1', 'url'=>'#'),
'subB2' => array('num'=>0, 'text'=>'subB2', 'url'=>'#'),
'subB3' => array('num'=>0, 'text'=>'subB3', 'url'=>'#')
);
$navArray = array(
'Home' => array('num'=>0, 'text'=>'Home', 'url'=>'#'),
'Info' => array('num'=>0, 'text'=>'Info', 'url'=>'#', 'subArray'=>$subitemsA),
'Sport' => array('num'=>0, 'text'=>'Sport', 'url'=>'#', 'subArray'=>$subitemsB),
);
$html = '';
foreach($navArray as $item) {
$html .= "<li>";
$html .= "<a href='{$item['url']}'><i class='abc'></i>{$item['text']}</a>\n";
if (count($navArray) > 3) {
foreach($navArray.subArray as $subitem) {
$html .= "<li>";
$html .= "<a href='{$subitem['url']}'>{$subitem['text']}</a>\n";
$html .= "</li>";
}
}
$html .= "</li>";
}
The first foreach loop works. But how can I access the subArray of Info and Sport?
You need a three level foreach for this to work -
foreach($navArray as $key => $item) {
$html .= "<li>";
$html .= "<a href='{$item['url']}'><i class='abc'></i>{$item['text']}</a>\n";
foreach ($item as $itemkey => $value) {
if (is_array($value)) { //Now Check if $value is an array
foreach($value as $valuekey => $subitem) { //Loop through $value
$html .= "<li>";
$html .= "<a href='{$subitem['url']}'>{$subitem['text']}</a>\n";
$html .= "</li>";
}
}
}
$html .= "</li>";
}
This is an answer to your question in more general way: How to deal with multi-level nested array using recursion and template.
function parseArray(array $navArray, &$html, $depth = 0) {
foreach ($navArray as $item) {
$html .= "<li>";
// this function use template to create html
$html .= toHtml($item['url'], $item['text'], $depth);
foreach ($item as $subItem) {
if (is_array($subItem)) {
// use recursion to parse deeper level of subarray
parseArray($item, $html, $depth + 1);
}
}
$html .= "</li>";
}
}
function toHtml($url, $text, $depth)
{
$template = '';
if ($depth == 0) {
$template = '<a href=\'{{url}}\'><i class=\'abc\'></i>{{text}}</a>\n';
} elseif ($depth >= 1) {
$template = '<a href=\'{{url}}\'>{{text}}</a>\n';
}
// define more template for deeper level here if you want
$template = str_replace('{{url}}', $url, $template);
$template = str_replace('{{text}}', $text, $template);
return $template;
}
$html = '';
parseArray($navArray, $html);
Just hurrily forge this code out of mind, haven't test it yet. Hope it help.
Regards,
Needed Navigation Html
Home
Pages
About
Services
Products
Contact
FAQs
Sitemap
Privacy Policy
Column Layouts
1 Column
2 Column (Left Sidebar)
2 Column (Right Sidebar)
3 Column
4 Column
I want to use php arrays and foreach loops to output the needed html.
The php code I have thus far is:
<?php
$data = array("navigation");
$data['navigation']['Home'] = base_url();
$data['navigation']['Pages'] = base_url('pages');
$data['navigation']['Pages']['About'] = base_url('pages/about');
echo '<ul>';
foreach($data as $nav) {
foreach($nav as $subNavKey => $subNavHref) {
echo "<li><a href='$subNavHref'>$subNavKey</a>";
}
}
echo '</ul>';
?>
I was thinking I would need three foreach loops nested but php warnings/errors are generated when the third loop is reached on lines such as:
$data['navigation']['Home'] = base_url();
$data['navigation']['Pages'] = base_url('pages');
I'm not quite sure how to test for 3rd level depths such as:
$data['navigation']['Pages']['About'] = base_url('pages/about');
Also, outputting the needed li and ul tags in the proper positions has given me trouble aswell.
Use recursion
$data['navigation']['Home'] = base_url();
$data['navigation']['Pages'] = base_url('pages');
$data['navigation']['Pages']['About'] = base_url('pages/about');
$data['navigation']['Pages']['About']['Team'] = base_url('pages/team');
$data['navigation']['Pages']['About']['Team']['Nate'] = base_url('pages/nate');
echo "<ul>"
print_list($data);
echo "</ul>"
function print_list($menu) {
foreach($menu as $key=>$item) {
echo "<li>";
if(is_array($item)) {
echo "<ul>";
print_list($item);
echo "</ul>";
} else {
echo "<a href='{$val}'>$key</a>";
}
echo "</li>";
}
}
<?php
function nav($data) {
$html = '<ul>';
foreach ($data as $k => $v) {
if (is_array($v)) {
$html .= "<li>$k" . nav($v) . "</li>";
}
else {
$html .= "<li><a href='$k'>$v</a>";
}
}
$html .= '</ul>';
return $html;
}
echo nav($data);
A recursive function can get the job done:
$items = array(
"Home",
"Pages" => array(
"About",
"Services",
"Products",
"Contact",
"FAQs",
"Sitemap",
"Privacy Policy",
"Column Layouts" => array(
"1 Column",
"2 Column (Left Sidebar)",
"2 Column (Right Sidebar)",
"3 Column",
"4 Column"
)
)
);
function getMenu($array) {
foreach($array as $key => $value) {
if(is_array($value)) {
echo "<li>" . $key . "</li>";
echo "<ul>";
getMenu($value);
echo "</ul>";
} else {
echo "<li>" . $value . "</li>";
}
}
}
echo "<ul>";
getMenu($items);
echo "</ul>";
Output:
You should use a recursive function, for example (Working Demo):
function makeMenu($array)
{
$menu = '';
foreach($array as $key => $value) {
if(is_array($value)) {
$menu .= '<li>' . $key . '<ul>' . makeMenu($value) . '</ul></li>';
}
else {
$menu .= "<li><a href='". $value ."'>" . $value ."</a></li>";
}
}
return $menu;
}
Then call it like:
$data = array(
"Home",
"Pages" => array("About", "Services"),
"Column Layouts" => array("1 Column", "2 Column (Left Sidebar)")
);
echo '<ul>' . makeMenu($data) . '</ul>';
I'm looking to generate a hierarchical breadcrumb from a taxonomy term (e.g. grandparent/parent/child) when all I have is the TID of "child". I've been toying around with taxonomy_get_tree(), but it seems quite difficult to do without very heavy iteration. There has to be an easier way.
Thoughts?
Thanks!
Taxonomy Breadcrumb seems to provide this functionality.
If you don't want to use the module, the code might provide inspiration.
This is what I do:
$breadcrumb[] = l(t('Home'), NULL);
if ($parents = taxonomy_get_parents_all($tid)) {
$parents = array_reverse($parents);
foreach ($parents as $p) {
$breadcrumb[] = l($p->name, 'taxonomy/term/'. $p->tid);
}
}
drupal_set_breadcrumb($breadcrumb);
I'll typically stick this in a hook_view() function or hook_nodeapi($op="view") function.
If you are using Drupal 7, Taxonomy Breadcrumb is yet in dev version and you have to code.
A solution more complete could be the follow (put this function in YOUR_THEME_NAME/template.php)
function YOUR_THEME_NAME_breadcrumb( $variables )
{
// init
$breadcrumb = $variables['breadcrumb'];
// taxonomy hierarchy
$hierarchy = array();
if (arg(0) == 'taxonomy' && arg(1) == 'term' && is_numeric(arg(2)))
{
$tid = (int)arg(2);
$parents = array_reverse(taxonomy_get_parents_all($tid));
foreach( $parents as $k=>$v)
{
if( $v->tid==$tid ) continue;
$breadcrumb[] = l($v->name, 'taxonomy/term/'. $v->tid);;
}
}
// rendering
if (!empty($breadcrumb))
{
$output = '<h2 class="element-invisible">' . t('You are here') . '</h2>';
$output .= '<div class="breadcrumb">' . implode("<span class='separator'>»</span>", $breadcrumb) . '</div>';
return $output;
}
}
function yourthemename_breadcrumb( $variables )
{// init
$breadcrumb = $variables['breadcrumb'];
// taxonomy hierarchy
$hierarchy = array();
if (arg(0) == 'taxonomy' && arg(1) == 'term' && is_numeric(arg(2)))
{
$tid = (int)arg(2);
$parents = taxonomy_get_parents_all($tid); dpm($parents);
$parents = array_reverse($parents);dpm($parents);
$breadcrumb = array();
$breadcrumb[] = l('Home', '/');
foreach( $parents as $k=>$v)
{
$breadcrumb[] = l($v->name, 'taxonomy/term/'. $v->tid);;
}
}
// rendering
if (!empty($breadcrumb))
{
$output = '<h2 class="element-invisible">' . t('You are here') . '</h2>';
$output .= '<div class="breadcrumb">' . implode("<span class='separator'>»</span>", $breadcrumb) . '</div>';
return $output;
}
}