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(PHP 5 >= 5.4.0, PHP 7, PHP 8)
stream_set_chunk_size — 设置资源流区块大小
stream
目标资源流。
size
想设置的新的区块大小。
成功的情况下返回资源流之前的区块大小。
当 size
比 1 小或者比 PHP_INT_MAX
还大的时候将抛出 ValueError。