Dynamic header's code sequence

**kidwithshirt** · Jul 23, 2007 11:14

Hi, I m making a page that has a dynamic header (title, meta description blah) corresponds to the Mysql query result

i check if the url sets an id, if it doesnt then the page is a "homepage" and it has a homepage title, else the title is the name on the data entry

Since i query (mysql_fetch) later on in the page to get the page content, do i absolutely need to have another query in the first place to display the headers?

here's what i am talking about in codes:

what i think might work:

Code PHP:

<!-- http stuff here -->
<header>
<title><?php echo "$page_title"?></title>
<meta description = php here>
</head>
 
<?php 
 
if !isset($_GET['id']) {
//static title
$page_title = "HOMEPAGE Z0mg!"
...some query to display a list of shortened version of contents..
}
 
else {
$id = $_GET['id'];
$query = "SELECT pid, title, content stuff blah blah FROM blab";
$result = @mysql_query($query);
$row = mysql_fetch_assoc($result);
//set page title here?
$page_title = $row['title']
//then display content
blah.

i dont know how php sequences its code. Due to some odd reasons, i dont have the environment to test these codes out ( i will be able to, eventually)

but if someone can explain what's happening here, that would be awesome.

**php_daemon** · Jul 23, 2007 14:45

No, that won't work. You have to simply move the code above the html output. Once $page_title is echoed, you're not gonna change the output later on.

**kidwithshirt** · Jul 23, 2007 16:51

Originally Posted by php_daemon

No, that won't work. You have to simply move the code above the html output. Once $page_title is echoed, you're not gonna change the output later on.

sigh

oh well one more line of php wont hurt anyone

**php_daemon** · Jul 23, 2007 17:02

Well, you can always do this:

Code HTML4Strict:

<?php
if (!isset($_GET['id']) {
  //static title
  $page_title = "HOMEPAGE Z0mg!"
  //...some query to display a list of shortened version of contents..
}else {
  $id = $_GET['id'];
  $query = "SELECT pid, title, content stuff blah blah FROM blab";
  $result = @mysql_query($query);
  $row = mysql_fetch_assoc($result);
  //set page title here?
  $page_title = $row['title'];
  $content = $row['content'];
}
?>
 
<html>
<head>
<title><?php echo $page_title; ?></title>
<meta description = "<?php echo $page_description; ?>" />
</head>
<body>
<?php echo $content; ?>
</body>
</html>

Or better yet, move the html to a different file and include it in php script. Let's call the html file template.php:

Code HTML4Strict:

<html>
<head>
<title><?php echo $page_title; ?></title>
<meta description = "<?php echo $page_description; ?>" />
</head>
<body>
<?php echo $content; ?>
</body>
</html>

and

Code php:

<?php
if (!isset($_GET['id']) {
  //static title
  $page_title = "HOMEPAGE Z0mg!"
  //...some query to display a list of shortened version of contents..
}else {
  $id = $_GET['id'];
  $query = "SELECT pid, title, content stuff blah blah FROM blab";
  $result = @mysql_query($query);
  $row = mysql_fetch_assoc($result);
  //set page title here?
  $page_title = $row['title'];
  $content = $row['content'];
}
 
include('template.php');
?>

**kidwithshirt** · Jul 23, 2007 17:05

Originally Posted by php_daemon

Well, you can always do this:

Code HTML4Strict:

<?php
if !isset($_GET['id']) {
//static title
$page_title = "HOMEPAGE Z0mg!"
//...some query to display a list of shortened version of contents..
}else {
$id = $_GET['id'];
$query = "SELECT pid, title, content stuff blah blah FROM blab";
$result = @mysql_query($query);
$row = mysql_fetch_assoc($result);
//set page title here?
$page_title = $row['title'];
$content = $row['content'];
?>
 
<html>
<head>
<title><?php echo $page_title; ?></title>
<meta description = php here>
</head>
<body>
<?php echo $content; ?>
</body>
</html>

Or better yet, move the html to a different file and include it in php script. Let's call the html file template.php:

Code HTML4Strict:

<html>
<head>
<title><?php echo $page_title; ?></title>
<meta description = php here>
</head>
<body>
<?php echo $content; ?>
</body>
</html>

and

Code php:

<?php
if !isset($_GET['id']) {
//static title
$page_title = "HOMEPAGE Z0mg!"
//...some query to display a list of shortened version of contents..
}else {
$id = $_GET['id'];
$query = "SELECT pid, title, content stuff blah blah FROM blab";
$result = @mysql_query($query);
$row = mysql_fetch_assoc($result);
//set page title here?
$page_title = $row['title'];
$content = $row['content'];
 
include('template.php');
?>

yep. thanks for the tips

i thought of this in the first place

so php does execute code in a sequence of the way it's written eh

**php_daemon** · Jul 23, 2007 17:08

Originally Posted by kidwithshirt

so php does execute code in a sequence of the way it's written eh

How else would you expect? It definitely does not jump back and forth randomly.

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