laravel composer installation component Times error

php. / composer.phar install

• error message

- Installing laravel/framework (v5.1.46)
    Loading from cache

  - Installing guzzlehttp/guzzle (6.3.2)
    Downloading: Failed       
    Downloading: Failed       
    Downloading: Failed       
    Failed to download guzzlehttp/guzzle from dist: The "https://files.phpcomposer.com/files/guzzle/guzzle/68d0ea14d5a3f42a20e87632a5f84931e2709c90.zip" file could not be downloaded: SSL operation failed with code 1. OpenSSL Error messages:
error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
Failed to enable crypto
failed to open stream: operation failed
    Now trying to download from source
  - Installing guzzlehttp/guzzle (6.3.2)
    Cloning 68d0ea14d5a3f42a20e87632a5f84931e2709c90
    

several projects have been used in this way before, and there is no such error

error:14090086:SSL routines::ssl3_get_server_certificate:certificate verify failed

then I follow this error to find

refer to this article: https://blog.csdn.net/w670328.

then this step still reports an error:

php -r "print_r(openssl_get_cert_locations());"

(
    [default_cert_file] => /etc/pki/tls/cert.pem
    [default_cert_file_env] => SSL_CERT_FILE
    [default_cert_dir] => /etc/pki/tls/certs
    [default_cert_dir_env] => SSL_CERT_DIR
    [default_private_dir] => /etc/pki/tls/private
    [default_default_cert_area] => /etc/pki/tls
    [ini_cafile] => /etc/pki/tls/cacert.pem
    [ini_capath] => 
)

could it be a resource problem:

https://files.phpcomposer.com.

Open this resource in the browser

shows that the certificate has expired!

also emailed the packagist team, but didn"t get a reply! Do you have this problem?