Syntax error

What PHP version are you on?

7.4.25

Are you sure you’re not running 5.6?

Can you post your diagnostics from Settings > Redis > Diagnostics?

This snippet fails on PHP 5.6, but works on PHP 7.4:

<?php

class Test123 {
  public function test() {
    return 'hello';
  }
}

$method = 'test';

$tx = new Test123;

var_dump($tx->{$method}() ?? []);

Diagnostics from Settings > Redis > Diagnostics:

Status: Подключено
Client: PhpRedis (v5.0.2)
Drop-in: Valid
Disabled: No
Ping: 1
Errors: []
PhpRedis: 5.0.2
Relay: Not loaded
Predis: Not loaded
Credis: Not loaded
PHP Version: 7.4.25
Plugin Version: 2.2.1
Redis Version: 6.2.4
Multisite: No
Metrics: Enabled
Metrics recorded: 2038
Filesystem: Working
Global Prefix: "wp_"
Blog Prefix: "wp_"
Global Groups: [
    "blog-details",
    "blog-id-cache",
    "blog-lookup",
    "global-posts",
    "networks",
    "rss",
    "sites",
    "site-details",
    "site-lookup",
    "site-options",
    "site-transient",
    "users",
    "useremail",
    "userlogins",
    "usermeta",
    "user_meta",
    "userslugs",
    "redis-cache",
    "blog_meta"
]
Ignored Groups: [
    "counts",
    "plugins",
    "themes"
]
Unflushable Groups: []
Groups Types: {
    "blog-details": "global",
    "blog-id-cache": "global",
    "blog-lookup": "global",
    "global-posts": "global",
    "networks": "global",
    "rss": "global",
    "sites": "global",
    "site-details": "global",
    "site-lookup": "global",
    "site-options": "global",
    "site-transient": "global",
    "users": "global",
    "useremail": "global",
    "userlogins": "global",
    "usermeta": "global",
    "user_meta": "global",
    "userslugs": "global",
    "redis-cache": "global",
    "counts": "ignored",
    "plugins": "ignored",
    "themes": "ignored",
    "blog_meta": "global"
}
Drop-ins: [
    "advanced-cache.php v by ",
    "Redis Object Cache Drop-In v2.2.1 by Till Krüss"
]

• This reply was modified 2 years, 4 months ago by Mario62rus.

Is one of your CLI processes running 5.6?

How often are you seeing the Parse error?

Is one of your CLI processes running 5.6?

I find it difficult to answer. I run a PHP script on the hosting using the shell_exec command. I think that it is at such moments that a failure occurs.

That would be the culprit then.

echo shell_exec('php --version')

You were right. The shell_exec() command runs under the old PHP version. To run this command under a new version of PHP, you need to do it like this:
shell_exec( "/usr/local/bin/php7.4 path_to_script" );

Thanks

My site got the same error. Can you help me fix it?
This error happens very often.