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1.批量修改日期格式
date1.txt: _date.php: <?$eol_symbol = "\r\n"; // for batch operation$output_filename = "date2.txt"; $output_fp = fopen($output_filename, "w"); $lines = file ("date1.txt");foreach ($lines as $line_num => $line) { $new_line = substr($line,0,4)."/".substr($line,4,2)."/".substr($line,6,2).$eol_symbol; fwrite($output_fp, $new_line); }fclose($output_fp);echo "Finished!";?>date2.txt: 2010/01/012011/02/032015/03/05。
