Parse Error: Syntax Error, Unexpected '|', Expecting Variable (T_Variable) Symfony Php Version Wamp Windows

Question

I have some syntax errors from symfony vendor when i'm trying to composer install my project.

Parse error: syntax error, unexpected '|', expecting variable (T_VARIABLE) vendor\psr\log\src\LoggerInterface.php on line 30

With several search, I saw the problem is from PHP version (have to be > 7.1), but actually my version is 7.4.9, this is a local machine, i'm working with WAMP on Windows. Symfony 4.4 version. Already tried to delete vendor, .lock...

Here the php version from phpinfo()

Here php version from wamp

Here php version from CLI php-v

Here my composer.json

{
"type": "project",
"license": "proprietary",    
"require": {
    "php": ">=7.1.3",
    "ext-ctype": "*",
    "ext-iconv": "*",
    "doctrine/annotations": "^1.13",
    "mongodb/mongodb": "^1.10@dev",
    "ramsey/uuid": "^4.2",
    "symfony/console": "4.4.*",
    "symfony/dotenv": "4.4.*",
    "symfony/flex": "^1.3.1",
    "symfony/form": "4.4.*",
    "symfony/framework-bundle": "4.4.*",
    "symfony/messenger": "4.4.*",
    "symfony/yaml": "4.4.*"
},
"require-dev": {
},
"minimum-stability": "dev",
"config": {
    "preferred-install": {
        "*": "dist"
    },
    "sort-packages": true,
    "platform": {
        "php": "7.4.9"
    }
},
"autoload": {
    "psr-4": {
        "App\\": "src/"
    }
},
"autoload-dev": {
    "psr-4": {
        "App\\Tests\\": "tests/"
    }
},
"replace": {
    "paragonie/random_compat": "2.*",
    "symfony/polyfill-ctype": "*",
    "symfony/polyfill-iconv": "*",
    "symfony/polyfill-php71": "*",
    "symfony/polyfill-php70": "*",
    "symfony/polyfill-php56": "*"
},
"scripts": {
    "auto-scripts": {
        "cache:clear": "symfony-cmd",
        "assets:install %PUBLIC_DIR%": "symfony-cmd"
    },
    "post-install-cmd": [
        "@auto-scripts"
    ],
    "post-update-cmd": [
        "@auto-scripts"
    ]
},
"conflict": {
    "symfony/symfony": "*"
},
"extra": {
    "symfony": {
        "allow-contrib": false,
        "require": "4.4.*"
    }
}
}

Have some idea ?

Accepted Answer

I added this in the composer.json and it worked.

"config": {
        "platform": {
            "php": "7.4.21"
         }
   }

The run. composer update

This downgraded psr/log to a lower version from 2.0 and resolved my issue.

Answer 2

I got the solution.

uninstall composer using following command

sudo apt remove composer

sudo apt autoremove

switch to compatible php you are looking for using following command (if multiple php versions are running on your system)

sudo update-alternatives --config php

then install composer using older method given on below link

Answer 3

This character '|' is used only in php version >= 8.0 You can update the php version

That worked for me :)

References:

Answer 4

If the other solutions not does works, u can try this:

curl -sS  | php
php composer.phar update

Answer 5

Delete the vendor folder, delete the composer.lock file, then run composer install. that worked for me

Answer 6

I also faced this error when I upgrade ubuntu version from 20 to 22. I was using php 7.4 version. I tried to find the solution on google and mostly was saying to upgrade php version to 8. I updated to php 8 version but then again composer start throwing errors in Laravel project. Nothing helpful. So I uninstall php 8 and then reinstall composer and php 7.4. Everything start working fine. So in my conclusion. We can try these steps:

Reinstall Php version
Reinstall composer if you are using composer.
Restart your apache or nginx server

Answer 7

This can be caused by using the wrong actual PHP version with the PHP-version stated in composer.

Parse Error: Syntax Error, Unexpected '|', Expecting Variable (T_Variable) Symfony Php Version Wamp Windows

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Parse Error: Syntax Error, Unexpected '|', Expecting Variable (T_Variable) Symfony Php Version Wamp Windows

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