Fills a memory area

# FFI::memset

(PHP 7 >= 7.4.0, PHP 8)

FFI::memset — Fills a memory area

### 说明

public static function FFI::memset(FFI\CData `&$ptr`, int `$value`, int `$size`): void

Fills `size` bytes of the memory area pointed to by `ptr` with the given byte `value`.

### 参数

`ptr`
  The start of the memory area to fill.
`value`
  The byte to fill with.
`size`
  The number of bytes to fill.

### 返回值

没有返回值。

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