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Why does a function report an error when using use?

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2016-09-14 09:23:591325browse

phpstorm error:
Why does a function report an error when using use?

Code:

<code>$container = [];
function app($class_name) use ($container)
{
    return $container -> get($class_name);
}
</code>

Error report:

<code>Parse error: syntax error, unexpected 'use' (T_USE), expecting '{' in C:\Users\shellus\www\php-redis-note\public\index.php on line 16</code>
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