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<?php class MyFilter extends php_user_filter { public function filter($in, $out, &$consumed, $closing) { stream_bucket_make_writeable($in); return PSFS_ERR_FATAL; } } stream_filter_register('filtername', MyFilter::class); $source_resource = fopen('php://memory', 'rb+'); fwrite($source_resource, 'Test data'); rewind($source_resource); stream_filter_prepend($source_resource,'filtername',STREAM_FILTER_READ); var_dump(stream_copy_to_stream($source_resource, fopen('php://memory', 'wb')));
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of MyFilter::filter($in, $out, &$consumed, $closing) should either be compatible with php_user_filter::filter($in, $out, &$consumed, bool $closing): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/dD9ZH on line 4 bool(false)

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