Ok, let me explain:
I have a some files, something basic like this:
index.php
<html>
<head>
<title>Simple page</title>
</head>
<body>
<?php include 'home.php'; ?>
</body>
</html>
home.php
<div class="thisWillBeBlue">Still not blue</div>
style.css
.thisWillBeBlue {background: blue}
Now the question: Using php I want to insert the style.css inside the head tag, calling it from the file home.php. Well, I came out with a solution, but it was not very effective:
index.php
<?php $css = array();
$css[] = 'linktothecss.css'
?>
<html>
<head>
<title>Simple page</title>
<?php
foreach($css as $item){
echo "<link rel='stylesheet' href='".$item."' />";
}
?>
</head>
<body>
<?php include 'home.php'; ?>
</body>
</html>
But the problem it is, If I call the css from home.php it will be added to the array later, therefore it will not be echoed inside the head tag. Any ideas?
You could do it using ob_start() and ob_end_flush() functions e.g.
index.php
<?php
$csspage = "default.css";
function loadCSS($buffer) {
global $csspage;
return (str_replace('{{ css }}', $csspage, $buffer));
}
ob_start("loadCSS"); ?>
<html>
<head>
<!-- the string {{ css }} is just a placeholder that will be replaced
with the new value of $csspage defined later in the code, otherwise
it will replaced with its initial value (default.css)
-->
<link href="{{ css }}" />
</head>
<body>
<?php include 'home.php'; ?>
</body>
</html>
<?php ob_end_flush(); ?>
home.php
<?php $csspage = "custom_style.css"; ?>
<div class="thisWillBeBlue">blue</div>
Further reference: http://it1.php.net/ob_start
I think you are looking for something like this ..(include a piece of code in their header files, so that it will allow you to add more stylesheets )
This will allow you to add more stylesheets to it on each page. (add this to <head>)
<?php
if (!empty($styles) && is_array($styles)) {
foreach ($styles AS $style) {
echo '<link rel="stylesheet" href="/assets/css/'. $style .'">';
}
}
?>
You can put a variable at the top of an individual script if you need a specific stylesheet:
<?php
$styles = array('custom_style.css');
?>
CSS file references can be placed in the body of your code, if needed.
<body>
<link href="linktothecss.css" rel="stylesheet" type="text/css" />
<div class="thisWillBeBlue">
I'll be blue as soon as linktothecss.css finishes loading!
</div>
</body>
The only difference is that when in the HEAD, they are guaranteed to be loaded before the page is rendered. When they are in the BODY, there may be a split-second where they are still loading and the styles haven't been applied yet.
If you definitely want them in the HEAD, you could define the css requirements in a separate folder with the same file name, like so:
index.php:
<html>
<head>
<?php
include('css-requirements/home.php');
?>
</head>
<body>
<?php include('home.php'); ?>
</body>
</html>
and
css-requirements/home.php:
<link href="mycss.css" rel="stylesheet" type="text/css" />
<link href="myothercss.css" rel="stylesheet" type="text/css" />