Output Buffering help needed.

[Vander]

Please excuse me if I don't use appropriate formatting, I'm new here, however, this seems like a good place to come for help.

 

What I am trying to do: I am trying to make a class that will handle my layouts.

What problem I am encountering: When I run my script, I am getting this message. "Fatal error: ob_start() [<a href='ref.outcontrol'>ref.outcontrol</a>]: Cannot use output buffering in output buffering display handlers in C:\xampp\htdocs\core\main.php on line 17"

 

Here is the code I am using.

 

<?php
class HTML{
private $header;
private $footer;

function __construct(){
	ob_start(array($this,'callback'));
}

function callback($buffer){
	 $this->header();
	 $this->footer();
	 return $this->header.$buffer.$this->footer;
}

function header(){
	ob_start(); // This is line 17
	echo "header<hr />";
	$this->header = ob_end_flush();
}	
function footer(){
	ob_start();
	echo "<hr />footer";
	$this->footer = ob_end_flush();
}
}
$HTML = new HTML;
?>

 

If anyone can help me, that will be great.

 

Thanks,

Alan

[Vander]

I seem to have managed to achieve my desired result, although, I'm not sure it's that great, I will however share what I've done incase this can better help someone to help me, or incase it can help others.

 

<?php
class HTML{
private $header;
private $footer;

function __construct(){
	$this->header();
	$this->footer();
	ob_start(array($this,'callback'));
}

function callback($buffer){
	$return = '';
	$return .= $this->header;
	$return .= $buffer;
	$return .= $this->footer;
	return $return;
}

function header(){
	ob_start();
	echo "header<hr />";
	$this->header = ob_get_contents();
	ob_end_clean();
}	
function footer(){
	ob_start();
	echo "<hr />footer";
	$this->footer = ob_get_contents();
	ob_end_clean();
}
}
$HTML = new HTML;
?>

 

What I did: Re-ordered when shit is called, i.e, I call the header and footer, store them in variables, then procced with the rest of the script, etc... I'm sure you can see what I done.