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What is the correct method for splitting and integrating a php script inside another?

I just started programming PHP, I know how to enable PHP, but in this case I ran into difficulties. I have a LAMP server, in the root folder I set my own structure, as shown below (folders in capital letters).

index.php

page.php

INCLUDES

 - classes.php 
 - skins.php
 - flow_init.php
 - flow_head.php
 - flow_body.php

SOURCES

 - page1.php 
 - page2.php

 ...

THEME_HTML

 - wrapper.html

   VIEWS

     - page1.html  

     - page2.html

       ...

wrapper.html created in index.php

<?php // index.php
$skin = new skin('wrapper');
echo $skin->make();

This is my skins.phpfile.

<?php // INCLUDES/skins.php
class skin {
    var $filename;

    public function __construct($filename) {
        $this->filename = $filename;
    }

    public function mk($filename) {
        $this->filename = $filename;
        return $this->make();
    }

    public function make() {
        global $CONF;
        $file = sprintf('./'.$CONF['theme_path'].'/'.$CONF['theme_name'].'/html/%s.html', $this->filename);
        $fh_skin = fopen($file, 'r');
        $skin = @fread($fh_skin, filesize($file));
        fclose($fh_skin);

        return $this->parse($skin);
    }

    private function parse($skin) {
        global $TMPL, $LNG;

        $skin = preg_replace_callback('/{\$lng->(.+?)}/i', create_function('$matches', 'global $LNG; return $LNG[$matches[1]];'), $skin);
        $skin = preg_replace_callback('/{\$([a-zA-Z0-9_]+)}/', create_function('$matches', 'global $TMPL; return (isset($TMPL[$matches[1]])?$TMPL[$matches[1]]:"");'), $skin);

        return $skin;
    }
}
?>

Each page VIEWSis created inside SOURCESand page.phpechoed.

Script for integration

Everything works fine, but now I need to integrate this script between the wrapper (where there is a title tag) and one view (where the content is)

<?php
session_start();
require_once('admin/plugins/flow-flow/ff-injector.php');
$injector = new FFInjector();
?>

<!DOCTYPE html>

<html lang="en-US">
<head><?php echo $injector->head(true,true); ?>
</head>
<body>

    <table width="100%">
        <tr>
            <td style="width: 300px;vertical-align: top">
                <?php
                    $stream_id = isset($_REQUEST['stream']) ? $_REQUEST['stream'] : 1;
                    $injector->stream($stream_id);
                ?>
            </td>
        </tr>
    </table>

</body>
</html>

For this purpose, I tried to create several templates:

<?PHP // index.php
$TMPL['flow_init'] = include './includes/flow_init.php';
$TMPL['flow_head'] = include './includes/flow_head.php';

<?PHP // SOURCES/page1.php
$TMPL['flow_body'] = include './includes/flow_body.php';

Where are my included files installed below

<?PHP // flow_init.php
session_start();
require_once('admin/plugins/flow-flow/ff-injector.php');
$injector = new FFInjector();
?>

<?PHP // flow_head.php
echo $injector->head(true,true); 
?>

<?PHP // flow_body.php
$stream_id = isset($_REQUEST['stream']) ? $_REQUEST['stream'] : 1;
$injector->stream($stream_id);
?>

What do I expect to achieve

flow_init flow_head , :

// THEME_HTML/wrapper.html
{$flow_init}
<!DOCTYPE html>
<html lang="en">
<head>
    {$flow_head}
</head>
<body>
    <div id="content" class="wrapper">
        {$content}
    </div>
</body>
</html>

flow_body

// THEME_HTML/VIEWS/page1.html
<div class="row-body{$content_class}">
    <div class="body-content">
        <div class="nine columns" id="main-content">
            {$flow_body}
        </div>
        <div class="three columns">
            {$sidebar}
        </div>
    </div>
</div>

, , 3 index.php, , , .

PHP script ?

+4
1

PSR-4 Composer, . require_once , , .

, Reinvent the Wheel, . , , - Laravel Blade Symfony Twig. PHP League Developer, PHP.

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