The file function does not need to use php to read the last line of a large file.

Source: Internet
Author: User
The file function does not need to use php to read the last line of a large file. The file function does not need to use php to read the last line of a large file.


Reply to discussion (solution)

You can use fseek to specify the last position and then read it forward.
For example, fseek ($ fp,-1, SEEK_END); then the first line of the last line is reached.

20130721          2.02M        20130722          2.02M    20130723          2.02M    20130724          2.02M   20130725          2.02M    20130726          2.02M    20130727          2.02M   20130728          2.02M    20130729          2.02M    20130730          2.02M   20130731          2.02M   20130801          2.02M     

For example, I want to go to the last line. how can I write the specific code? give a demo. thank you!

$ Fn = 'Your text filename '; $ fp = fopen ($ fn, 'r'); fseek ($ fp,-1, SEEK_END); $ s = ''; while ($ c = fgetc ($ fp ))! = False) {if ($ c = "\ n" & $ s) break; $ s = $ c. $ s; fseek ($ fp,-2, SEEK_CUR);} fclose ($ fp); echo $ s;

If the file is not huge, it is convenient to read the file.

$fp = fopen($fn, 'r');while($buf = fgets($fp)) $res = $buf;fclose($fp);echo $res;

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