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13 gru 2013 · I have a txt file that I want to read backwards, currently I'm using this: $fh = fopen('myfile.txt','r'); while ($line = fgets($fh)) { echo $line."<br />"; } This outputs all the lines in my file. I want to read the lines from bottom to top. Is there a way to do it?
Returns a string of up to length - 1 bytes read from the file pointed to by stream. If there is no more data to read in the file pointer, then false is returned. If an error occurs, false is returned.
In my PHP application I need to read multiple lines starting from the end of many files (mostly logs). Sometimes I need only the last one, sometimes I need tens or hundreds. Basically, I want something as flexible as the Unix tail command.
less +F /path/to/your/file that's less but starting from the bottom. Also, with +F, if the file is being written to while you are using less, that additional content gets output. This can be useful for logs. Use the up arrow key to go backwards line by line or ctl+b to go page by page.
23 lip 2008 · if you're doing it line by line you could use file() instead of file_get_contents. That will read your entire file and put it into an array (one line per element) instead of a giant string like what file_get_contents does. Then you can array_reverse the array and loop through it.
15 lis 2022 · Use the filesize function to read the entire file with fread function: <?php $file = 'file.txt'; $fp = fopen($file, 'r'); if ($fp === false) { die ("Unable to open $file"); } $size = filesize($file); $data = ''; if ($size > 0 ){ $data = fread($fp, $size); } if ($data === false) { die ("Unable to read $file"); } echo $data; fclose($fp);
11 sty 2024 · The most common approach for reading a file line by line is to use the fgets() function within a loop. The fgets() function reads a line from a file pointer and returns it as a string. The end of the line is determined by a newline character or EOF (end-of-file). <?php. $file = fopen('myfile.txt', 'r'); if ($file) {
