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<?php $fh = fopen('php://temp', 'w+'); fwrite($fh, '123'); var_dump(ftell($fh)); stream_filter_append($fh, 'zlib.deflate', STREAM_FILTER_WRITE, 9); fwrite($fh, 'abc'); var_dump(ftell($fh)); fseek($fh, 0); var_dump(fread($fh, 1024)); fclose($fh);
Output for git.master, git.master_jit, rfc.property-hooks
int(3) int(3) string(12) "123JLJ��"

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