Smarty5: installation without composer

[lifecom]

Is there any way for installation Smarty 5 without composer?

[scottchiefbaker]

With Smarty v4.x there definitely was a way. Checking the docs and the source for v5.x it's not as clear. I would very interested in not using composer as well. If this gets figured out we should update the docs with this info.

[wisskid]

This was discussed here
Does this solve your problem?

[scottchiefbaker]

That's pretty nebulous... I'd really like to see "official" documentation on how to do this. I'm not a huge fan of composer.

[wisskid]

Okay. Every (well, almost every, I guess) composer.json file has this section called "autoload".

For Smarty it currently reads:

"autoload": {
        "psr-4" : {
            "Smarty\\" : "src/"
        },
        "files": [
            "src/functions.php"
        ]
    },

So, register a PSR-4 autoloader for the Smarty namespace that reads from the src folder and include src/functions.php once.

That should do it.

[scottchiefbaker]

For Smarty 4.x my instantiation is:

require("include/smarty/libs/Smarty.class.php");
$smarty = new Smarty();

I've been doing it that way for 8+ years on Smarty 3.x and 4.x. I'd like to do something similar with Smarty 5.x.

require("smarty-5.0.2/src/functions.php");

use Smarty\Smarty;
$smarty = new Smarty();

I get Fatal error: Uncaught Error: Class "Smarty\Smarty" not found in... What am I doing wrong? I'm not familiar with PSR-4 autoloaders.

[scottchiefbaker]

FWIW I'm 100% willing to write up some documentation and submit a PR for how load Smarty without composer once I get it working. Clearly there are other people that desire this functionality as well. It would be good to have it in the official documentation.

[wisskid]

I asked ChatGPT to write it, seems like this might work:

spl_autoload_register(function ($class) {
    // Namespace prefix
    $prefix = 'Smarty\\';
    
    // Base directory for the namespace prefix
    $baseDir = __DIR__ . '/a/b/src/';
    
    // Does the class use the namespace prefix?
    $len = strlen($prefix);
    if (strncmp($prefix, $class, $len) !== 0) {
        // If not, move to the next registered autoloader
        return;
    }
    
    // Get the relative class name
    $relativeClass = substr($class, $len);
    
    // Replace namespace prefix with base directory, replace namespace separators with directory separators, and append .php
    $file = $baseDir . str_replace('\\', '/', $relativeClass) . '.php';
    
    // If the file exists, require it
    if (file_exists($file)) {
        require $file;
    }
});

If not, just run composer require smarty/smarty && composer dump-autoload and see what's in vendor/autoload.php

[joelmiguelvalente]

El código brindado por @wisskid funciona bien, lo acabo de comprobar

<?php

define('SMARTY', __DIR__ . DIRECTORY_SEPARATOR . 'smarty' . DIRECTORY_SEPARATOR);

spl_autoload_register(function ($class) {
   // Namespace prefix
   $prefix = 'Smarty\\';
   
   // Base directory for the namespace prefix
   $baseDir = SMARTY;
   
   // Does the class use the namespace prefix?
   $len = strlen($prefix);
   if (strncmp($prefix, $class, $len) !== 0) return;

   // Get the relative class name
   $relativeClass = substr($class, $len);
   
   // Replace namespace prefix with base directory, replace namespace separators with directory separators, and append .php
   $file = $baseDir . str_replace('\\', '/', $relativeClass) . '.php';
   
   // If the file exists, require it
   if (file_exists($file)) require $file;
});

Pero en donde vayan a utilizar $smarty = new Smarty();, debe ser así, como lo menciona en su documentación

use Smarty\Smarty;
$smarty = new Smarty();

ya que había intentado poner use Smarty\Smarty; en autoload.php para usarlo directamente con la variable, pero da error

Fatal error: Uncaught Error: Class "Smarty" not found in...

PD: Ahora resulta que tengo que realizar cambios para adaptar los plugins que había realizado y la forma de agregar otra carpeta de plugins es otra, la verdad prefiero la versión Smarty 4.5.1, para mí, era más fácil y simple de usar... Esta versión tiene muchos cambios.