How do I get this to pull my 2nd variable? (I already have a switch setup)
<body id="<?php if (! isset($_GET['page'])) { echo "home"; } else { $_GET['page']; echo $page; } ?>">
I have a switch statement that pulls the pages from
index.php?page=#####
and I have just added this part to my switch:
index.php?page=####§ion=#####
Right now, if I am on page=photos, my code ends up being:
<body id="photos">
I need to make it so that if any link has the "sections" variable on it like this page=photos§ion=cars it uses the same ID:
<body id="photos">
First of all, a HTML element can only have one id. So if you want to create a hybrid (e.g. page-section) you can do something like this:
<body id="<?php echo isset($_GET['page']) ? $_GET['page'] : "home"; echo isset($_GET['section']) ? ("-".$_GET['section']) : ''; ?>">
For more information on Ternary Operators in PHP (the ? and : I used in the echo statement) see http://php.net/manual/en/language.operators.comparison.php
I am not entirely sure I understand your question, but where you're doing:
$_GET['page']; echo $page;
What do you think is happening? You're echoing a variable that has no definition. If you want to echo the value passed in the url, just do:
echo $_GET['page'];
GET doesnt mean your getting the varible, its the method by which the variable was passed to he page. The possible methods are get (in the url) or post (not).
Wouldn't that be an if to find out it if the section was defined? i.e.
if(isset($_GET['section'])){
//create div
} elseif(isset($_GET['page']){
//create fallback div
}
Move the PHP code outside the body's id attribute for readability, and use else if. Make sure your code isn't vulnerable to injection by sanitizing or validating input from $_GET. For example:
<?php
function isValidID($x) {
return preg_match('/^[A-Z][-_.A-Za-z0-9]$/i', $x);
}
if (isset($_GET['section']) && isValidID($_GET['section'])) {
$bodyID = $_GET['section'];
} else if (isset($_GET['page']) && isValidID($_GET['page'])) {
$bodyID = $_GET['page'];
} else {
$bodyID = 'home';
}
?>
...
<body id="<?php echo $bodyID; ?>">
Alternatively,
<?php
function isValidID($x) {
return preg_match('/^[A-Z][-_.A-Za-z0-9]$/i', $x);
}
$bodyID='home';
foreach (array('section', 'home') as $key) {
if (isset($_GET[$key]) && isValidID($_GET[$key])) {
$bodyID = $_GET[$key];
break;
}
}
?>
...
<body id="<?php echo $bodyID; ?>">
In this case, I'd use the first, unrolled version. If you had to check more input keys, use the loop-based approach.
If you decide you want both page & section in the ID, you can try something like:
<?php
function isValidID($x) {
return preg_match('/^[A-Z][-_.A-Za-z0-9]$/i', $x);
}
if (isset($_GET['page']) && isValidID($_GET['page'])) {
$bodyID = $_GET['page'];
} else {
$bodyID = 'home';
}
if (isset($_GET['section']) && isValidID($_GET['section'])) {
$bodyID .= '_' . $_GET['section'];
}
?>
...
<body id="<?php echo $bodyID; ?>">
Related
I having issues getting a function to echo, where $lightbox_link1 = get_custom_field('lightbox_link1'). I'm fairly new to PHP.
Below is the defining function:
// Check for a lightbox link, if it exists, use that as the value.
// If it doesn't, use the featured image URL from above.
if(get_custom_field('lightbox_link1')) {
$lightbox_link1 = get_custom_field('lightbox_link1');
} else {
$lightbox_link1 = $image_full[0];
}
Echo Function:
<?php if ($lightbox_link1 = get_custom_field('lightbox_link1')) {
echo '';
} ?>
<?php if ($lightbox_link1 = get_custom_field('lightbox_link1')) {
should be
<?php if ($lightbox_link1 == get_custom_field('lightbox_link1')) {
= is used for assignment
== is used for comparison
=== is used for typesafe comparison
also you can't declare <?php ... ?> inside another <?php ... ?>
to get something like <?php ... <?php ... ?> ... ?>
take a look at what you did up to here:
<?php if ($lightbox_link1 = get_custom_field('lightbox_link1')) {
echo '<a href="<?php
Instead, using doublequotes in your echo statement will allow for the php variables inside to be parsed, so you could just do
echo "<a href='{$lightbox_link1}' data-rel='prettyPhoto[{$post_slug}]'></a>";
to get
<?php if ($lightbox_link1 == get_custom_field('lightbox_link1')) {
echo "<a href='{$lightbox_link1}' data-rel='prettyPhoto[{$post_slug}]'></a>";
} ?>
How do you do multiple page titles with on header file? Theres one thing though. For the index page, i've got
error_reporting(0);
if ($_GET["error"]=="404") {
include("forum/styles/art_air/web_template/overall_header.php");
include("include/404");
include("include/index");
include("forum/styles/art_air/web_template/overall_footer.php");
} else {
include("forum/styles/art_air/web_template/overall_header.php");
include("include/index");
include("forum/styles/art_air/web_template/overall_footer.php");
}
So i would have the header before anything else. So how would i manage to make so that
index?error=404 and index have different titles? Thanks in advance.
In overall_header.php
<?php
$title = "Hello, wolrd!";
if ( $_GET["error"] == "404" ) {
$title = "Error";
}
?>
<title><?php echo $title; ?></title>
Use JavaScript and document.title.
Example:
<script language="javascript">document.title = "My Title"</script>
JS can be used in body.
Another method is to set a $GLOBAL variable before including everything.
Example:
error_reporting(0);
$GLOBALS['404'] = 0;
if ($_GET["error"]=="404") {
$GLOBALS['404'] = 1;
include("forum/styles/art_air/web_template/overall_header.php");
include("include/404");
include("include/index");
include("forum/styles/art_air/web_template/overall_footer.php");
} else {
$GLOBALS['404'] = 0;
include("forum/styles/art_air/web_template/overall_header.php");
include("include/index");
include("forum/styles/art_air/web_template/overall_footer.php");
}
In your overall_header.php:
if($GLOBALS['404'] == 1) echo '<title>404: Not Found</title>';
else echo '<title>My Title</title>';
You could try a switch
<?php
$page = $_SERVER['PHP_SELF'];
switch($page) {
case "index.php":
echo "<title>My Homepage</title>";
break;
case "apples.php":
echo "<title>The Best Apples!</title>";
break;
case "bananas.php":
echo "<title>We Sell Bananas</title>";
break;
}
?>
So prior to being introduced to CakePHP, I'd highlight the appropriate navigation tab according to the url with the following (rather sloppy) code I wrote (fyi absolute_url was a function I wrote to get the absolute path) :
$page = $_SERVER['PHP_SELF'];
// add all possible states for the navigation to an array
$checkNav = array(
"index" => "index",
"new" => "new",
"random" => "random",
"submit" => "submit"
);
$compareAgainst = strpos($page, $checkNav['index']);
if ($compareAgainst == 0) {
echo "<li><span class=\"navBorder\">Popular</span></li>\n";
} else {
echo "<li>Popular</li>\n";
}
$compareAgainst = strpos($page, $checkNav['new']);
if ($compareAgainst == 0) {
echo "<li><span class=\"navBorder\">New</span></li>\n";
} else {
echo "<li>New</li>\n";
}
$compareAgainst = strpos($page, $checkNav['random']);
if ($compareAgainst == 0) {
echo "<li><span class=\"navBorder\">Random</span></li>\n";
} else {
echo "<li>Random</li>\n";
}
$compareAgainst = strpos($page, $checkNav['submit']);
if ($compareAgainst == 0) {
echo "<li><span class=\"navBorder\">+ Submit a Link</span></li>\n";
} else {
echo "<li>+ Submit a Link</li>\n";
}
Now, I've noticed that in Cake, to determine the relative path, I can just go:
<?= $this->here; ?>
Is there a better way to do this, or should I just implement this (new) method with the old code?
You can do the following
Add this to app_helper.php if you need it in multiple pages. You feed this function with the controller and the action you want to check you want to compare against. The function compares it with the current page and return true if they match.
function isActive($controller, $actions = array())
{
foreach ($actions as $action)
{
if ($controller == $this->params['controller'] && $action == $this->params['action'])
{
return true;
}
}
return false;
}
And then generate your links like so:
<ul class="left">
<li <?php if($html->isActive('controller_name', array('index'))) { echo 'class="active"'; } ?>><?php echo $html->link('Index', '/index'); ?></li>
<li <?php if($html->isActive('controller_name', array('new'))) { echo 'class="active"'; } ?>><?php echo $html->link('New', '/new'); ?></li>
<li <?php if($html->isActive('controller_name', array('random'))) { echo 'class="active"'; } ?>><?php echo $html->link('Random', '/random'); ?></li>
<li <?php if($html->isActive('controller_name', array('submit'))) { echo 'class="active"'; } ?>><?php echo $html->link('Submit', '/submit'); ?></li>
</ul>
If the function returns true, the link will have class="active". Adapt it to your needs.
The way I've always done this is to give your body tag an id, and use css to target it. If your views are all separate then you can hard code the body id. If you are using some sort of template that adds in the header, content, footer etc., then just pass the id as a variable to the header view or wherever the body tag is (really any outer container/div that will be on every view and contain your navigation tabs). Also you will need to give your navigation tab id's to target each one.
Then just some css like this:
#homepage a#hometab,
#aboutpage a#abouttab,
#productpage a#productstab,
#contactpage a#contacttab
{
special active styling here
}
What my current code does is, while checking the DB if the versions (FR and EN) are either True or False, display the proper content and if both exist to display a link so that users can switch languages. If only one language exists, the content is shown in that language and there is no link displayed.
the 2 functions in javascript are like this, here`s the FR one:
function makeVisibleFR()
{
document.getElementById('bbqc_contentFR').style.display="inline";
document.getElementById('bbqc_contentEN').style.display='none';
document.getElementById('vFrancais').style.display='none';
document.getElementById('vAnglais').style.display="inline";
}
What i`d like to add to this is the option of memorizing the user's choice and displaying the following pages with the same language version.
I imagine i'd need to create a $_SESSION['language'] variable and store in it either "FR" or "EN" but i`m not sure how to go about implementing that within my current code.
<?php
if($versionFR == true)
{
if($versionEN == true)
{
?>
Version Anglaise
<div id="bbqc_contentFR">
<h2><?php echo $titleFR; ?></h2>
<?php echo $contentFR; ?>
</div>
Version Française
<div style="display:none" id="bbqc_contentEN">
<h2><?php echo $titleEN; ?></h2>
<?php echo $contentEN; ?>
</div>
<?php
}
else
{
?>
<div id="bbqc_contentFR">
<h2><?php echo $titleFR; ?></h2>
<?php echo $contentFR; ?>
</div>
<?php
}
}
else
{
if($versionEN == true)
{
?>
<div id="bbqc_contentEN">
<h2><?php echo $titleEN; ?></h2>
<?php echo $contentEN; ?>
</div>
<?php
}
else
{
?>
<h2>Erreur, il n`y a aucun texte</h2>
<?php
}
}
?>
Here's a simplistic example:
// assuming that databaseHas() queries available languages
session_start();
$langs = array('ENG', 'FR');
$showlang = '';
if (databaseHas($_SESSION['lang']))
{
$showlang = $_SESSION['lang'];
}
else
{
foreach ($langs as $l)
{
if (databaseHas($l))
{
$showlang = $l;
break;
}
}
}
if ($showlang == '')
{
die('No languages found!');
}
echo databaseContent($showlang);
// print links to alternate languages
foreach ($langs as $l)
{
if (databaseHas($l) && $l != $showlang)
{
// print link to this language
}
}
put session_start() at the top of your file then:
if($versionFR == true) $_SESSION['lang'] = 'FR';
else $_SESSION['lang'] = 'ENG';
//later on (could be in a whole other page with session_start() on top)
if($_SESSION['lang'] == 'FR'){/*display FR stuff*/}
elseif($_SESSION['lang'] == 'ENG'){/*display ENG stuff*/}
Something like that should work well for ya ^_^
How would i go about adding that if 1)
both versions exist 2) lang is ENG 3)
english part is display:none by
default
1) You'd just add the clause: if($_SESSION['lang'] == 'FR' && $_SESSION['lang'] == 'ENG')
2) Not sure what you mean here, Neal explained it well from what I can see
3) If ENG is display:none by default, you'd want to fire off a javascript function to toggle it back on.
But let's take a step back here, consider this: Make two language files that define each piece of content. So for your english.php you might have variables such as $GREETING = 'Hello'; $YES = 'YES'; and then in your french.php you'd define these variables as $GREETING = 'Bonjour'; $YES = 'WEE'; (I'm not even sure if wee means yes, but you get the idea!). So now you can choose to include the appropriate language file based on the user's language, and you make it easy to add another language down the road. Be flexible!
How can I write the following statement in PHP:
If body ID = "home" then insert some html, e.g.
<h1>I am home!</h1>
Otherwise, insert this html:
<p>I'm not home.</p>
Doing it with native PHP templating:
<?php if ($bodyID==='home') { ?>
<h1>I am home!</h1>
<?php } else { ?>
<p>I'm not home!</p>
<?php } ?>
You can try using this :
$html = '';
if ( $body_id === 'home' )
{
$html .= '<h1>I am home!</h1>';
}
else
{
$html .= '<p>I\'m not home.</p>';
}
echo $html;
This will echo the html code depending on the $body_id variable and what it contains.
You can use a switch command like so:
switch($body)
{
case 'home': //$body == 'home' ?
echo '<h1>I am home!</h1>';
break;
case 'not_home':
default:
echo '<p>I'm not home.</p>';
break;
}
The default means that if $body does not match any case values, then that will be used, the default is optional.
Another way is as you say, if/else statements, but if within template / view pages you should try and use like so:
<?php if ($body == 'home'):?>
<h1>I am home!</h1>
<?php else:?>
<p>I'm not home!</p>
<?php endif; ?>
Assuming $bodyID is a variable:
<?php
if ($bodyID==='home') {
echo "<h1>I am home!</h1>";}
else {
echo "<p>I'm not home!</p>";}
?>
Personally I think that the best way to do that without refreshing and without having to set a variable (like $body or something like that) is to use a javascript code, this because "communications" between JS & PHP is a one-way communication.
<script language="javascript">
<!--
if( document.body.id === "home" ){
window.document.write("<h1>I am home!</h1>") ;
}
else{
window.document.write("<p>I'm not home!</p>") ;
}
-->
</script>
otherwise you can build a form and then take the body.id value using $_GET function... It always depends on what you've to do after you now body.id value.
Hope this will be usefull & clear.
you can try in the following way:
$body_id = "home";
if ($body_id == "home") {
echo "I am home!";
} else {
echo "I am not home!";
}
or
$body_id = "home";
if (strcmp($body_id, "home") !== 0) {
echo 'I am not home!';
}
else {
echo 'I am home!';
}
Reference:
https://www.geeksforgeeks.org/string-comparison-using-vs-strcmp-in-php/