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Ubuntu – Methods and a variable are not recognized in a PHP file

Good evening,

In order to program a PHP application using the Model-View-Controller architecture on Ubuntu 22.04, I first learned to create a vendor folder. Inside this folder, there’s another folder named composer, and within that, the ClassLoader class, two methods (acpu_fetch and apcu_add), and a variable ($hit) are not recognized. The php8.1-acpu package is properly installed. This package is listed when running php -m.
Attached to this message, you will find the ‘phpinfo.php’ file.
Thanks for your help! phpinfo.php

I uninstalled the apcu package and then reinstalled it. I tried the same program on Linux Mint and encountered the same problem.
/etc/php/8.1/mods-available/apcu.ini contains

extension=apcu.so
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2

Answers


  1. Chosen as BEST ANSWER
    0

    This is a portion of the program which poses problem: '''

    /**
     * Finds the path to the file where the class is defined.
     *
     * @param string $class The name of the class
     *
     * @return string|false The path if found, false otherwise
     */
    public function findFile($class)
    {
        // class map lookup
        if (isset($this->classMap[$class])) {
            return $this->classMap[$class];
        }
        if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {
            return false;
        }
        if (null !== $this->apcuPrefix) {
            $file = apcu_fetch($this->apcuPrefix.$class, $hit);
            if ($hit) {
                return $file;
            }
        }

        $file = $this->findFileWithExtension($class, '.php');

        // Search for Hack files if we are running on HHVM
        if (false === $file && defined('HHVM_VERSION')) {
            $file = $this->findFileWithExtension($class, '.hh');
        }

        if (null !== $this->apcuPrefix) {
            apcu_add($this->apcuPrefix.$class, $file);
        }

        if (false === $file) {
            // Remember that this class does not exist.
            $this->missingClasses[$class] = true;
        }

        return $file;
    }
'''
If you want the complete class, ask me

  2. 0

    I am testing this program with VSCodium and VSCode. When I disable the "PHP Intelephense" extension, the four errors disappear. Is there a setting to adjust to keep PHP Intelephense? How does PHP IntelliSense compare to PHP Intelephense?

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