PHP - How To Use Declare() Construct ?

Can you set a variable like so:

Function something(bob = true) {

}

I'm started learn PHP about 7 days.I want to know>>is this possible to declare a Variable like $password="Phpfreaks"??? 

Howdy colleagues,   I have noticed some programmers re-declare their variables before using them. Like so:

$name = '';
$name = 'Elizabeth';

First of all, why do they do that? Variables are being re-written with each "=" anyways. Secondly, do you believe this is better than just doing:

$name = 'Elizabeth';

Thank you

hi good day, im a little bit confuse. what i want to do is instead of $username = $_POST['username']; is to transform it into OOP?

please help me. thanks.

Hi, I have these variables for pages I navigate to because I pass them in the query string. However, I need a variable for the homepage (index.php), before any query string is created. I cant declare a vari

$_GET['intro'] ;
$_GET['about'] ;
$_GET['contact'] ;



However, I need a variable for the homepage (index.php), before any query string is created. I cant declare a variable in index.php because it will be used throughout the entire website. I also cant declare the variable in home.php (the bulk content of the homepage) because I need to use the variable before home.php is included. Is their a trick for this?

Thanks!

I keep running into a bunch of error when I  declare the page variable in my model.  What syntax do I need to use throughout the class?

Code: [Select]
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Header_Model extends CI_Model{

var $page = substr(end(explode(DIRECTORY_SEPARATOR, $_SERVER['PHP_SELF'])), 0, -4);

function get_page_name()
{
$this->load->library('common');

$page_names = $this->common->page_names();

$title = (array_key_exists($page, $page_names) !== false) ? $page_names[$page]: '';

if (array_key_exists($page, $page_names) !== false)
{
$title .= " | Jason Biondo";
}

return $title;
}

function get_js_page_file()
{
if (file_exists("./assets/js/pages/${page}.js"))
{
$javascript = "<script type=\"text/javascript\" src=\"./js/pages/${page}.js\"></script>";
}

return $javascript;
}

}

According to woorank.com my page shows the following.


Language
    Declared: Missing
    Detected: en

I have used Code: [Select]
header('content-type: text/html; charset=utf-8');
but do not know how I declare the language.

also how do i specify Language/character encoding

how is this done ?

I tried these below,
Code: [Select]
class Site extends Controller
{
  function Site()
 {
    public $data = Array();
 }
}

but it fail?

Thanks in advanced.

I am running through a tutorial and I am getting an error based on a the concatication operator on my output. Below is my code.

As you can see I am echoing $display_block .= "<p>$title<br>$rec_label<br>....

If I send this as-is I get this error: Notice: Undefined variable: display_block in C:\wamp\www\php\php_mysql\sel_byid.php on line 36

I can resolve the error by placing this before the while loop: $display_block = "";

Is there a better way to output the concatenation.= so I don't need to do this weird fix?



while ($row = mysql_fetch_array($result))
{
$id = $row['id'];
$format = $row['format'];
$title = stripslashes($row['title']);
$artist_fn = stripslashes($row['artist_fn']);
$artist_ln = stripslashes($row['artist_ln']);
$rec_label = stripslashes($row['rec_label']);
$my_notes = stripslashes($row['my_notes']);
$date_acq = $row['date_acq'];

if ($artist_fn != "")
{
$artist_fullname = trim("$artist_fn $artist_ln");
}
else
{
$artist_fullname = trim("$artist_ln");
}

if ($date_acq == "0000-00-00")
{
$date_acq = "[unknown]";
}

$display_block .= "<p>$title<br>$rec_label<br>$artist_fullname<br>$my_notes<br>$date_acq<br>$format</p>";