在Eclipse Neon PDT上使用Composer PSR-0自动加载器时出现错误“找不到类”

Question

I am currently trying to build a new PHP project from scratch (inside a git repository), using Composer (for the very first time), on Eclipse Neon PDT with Composer Eclipse Plugin and EGit .

In order to start with something quite simple, I first installed the well-known library PHP Markdown Lib . I think that I had not getting problem for configuring the require setting, as running Composer correctly updates dependencies using:

"require" : {
    "php" : ">=5.3",
    "michelf/php-markdown" : "~1.7"
},

As described in the Usage section of the documentation of PHP Markdown Lib, I setup a PSR-0-compatible autoloader in my composer.json and generated the autoload file:

"autoload" : {
    "psr-0" : {
        "Michelf\\Markdown" : "vendor/michelf/php-markdown/Michelf"
    }
},

On my PHP file, I have simply included the following:

$input = file_get_contents('input.md');
use Michelf\Markdown;
$output = Markdown::defaultTransform($input);

All seem to be correctly recognized by Eclipse Neon:

1. the namespace and class rightly appear as autocomplete propositions (first screenshot)
2. the library is displayed in the outline of the document as import declarations (second screenshot)

But, despite all my testings with these settings, the page is still displaying:

Fatal error: Class 'Michelf\\Markdown' not found

I have tested other formulations, such as use \\Michelf\\Markdown; : it is equally recognized by Eclipse Neon (autocomplete feature and document outline, as displayed on previous screenshots), but I still get the fatal error .

To ensure the autoload file was updated correctly, I have also executed the CLI dump-autoload command. Unfortunately, without more success at this time.

Right now, I suppose this problem seems to be not directly related with PHP Markdown Lib , but that I certainly forgot a step or made a mistake within my settings, which seem to fail to correctly set up the PSR-0 autoloader, even if all seem to be correctly detected by the Eclipse IDE.

Answer 1

您还记得在文件的开头包含composer autoload吗？

require __DIR__ . '/vendor/autoload.php';