<?php $fp = fopen('/tmp/test.txt', 'a+'); fwrite($fp, 'foo'); echo ftell($fp) ."\n"; fseek($fp, 0); fwrite($fp, 'bar'); echo ftell($fp) ."\n"; echo fread($fp, 3) ."\n"; fseek($fp, 0); echo fread($fp, 6) ."\n";
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