安装aws php sdk - 意外变量

Question

I'm trying to use the AWS php sdk, and having some issues getting set up. I'm getting this error when I run my php script that requires the autoloader:

Parse error: syntax error, unexpected '$value' (T_VARIABLE) in /[directory path]/Aws/functions.php on line 36

I looked in that document, and line 36 is the one that begins with if ($pred($value)).

function filter($iterable, callable $pred){
    foreach ($iterable as $value) {
        if ($pred($value)) {
            yield $value;
        }
    }
}

Not really sure how to work around this, so any tips would be greatly appreciated. Things I've tried: installing with composer. installing with .zip.

Followed these steps: http://docs.aws.amazon.com/aws-sdk-php/guide/latest/installation.html

Answer 1

The yield keyword for generators requires PHP 5.5.

Support for the last version that didn't have generators ended mid-late 2015. Continuing to use anything below what is currently supported is a bad idea. Consider bumping your PHP version.

Having said that, you may want to investigate sdk version 2.8.8 or lower. The 'required' sections of packagist list the php version requirements.