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Add short array syntax #47

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6 changes: 5 additions & 1 deletion spec.md
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Expand Up @@ -126,7 +126,11 @@ All PHP reserved keywords and types [[1]][keywords][[2]][types] MUST be in lower
Any new types and keywords added to future PHP versions MUST be in lower case.

Short form of type keywords MUST be used i.e. `bool` instead of `boolean`,
`int` instead of `integer` etc.
`int` instead of `integer`, etc. When declaring an `array`, short array syntax MUST be used:

```php
$arr = [];
```

### 2.6 Trailing commas

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