php - Why does fgets read the same lines over and over in wrong order? -

i have been using fgets read list of (20,000) words in file. working fine yesterday, somehow reads text file, list - out of order, reads of same sections on multiple times. it's 1 word per line. simple problem, enough stop workflow in tracks.

$fh = fopen('newsymbols.txt','r') or die($php_errormsg); while (! feof($fh)) { if ($s = fgets($fh,1024)) { 

curious if encountered strangeness fgets. using instead of file_get_contents because particular script used dom objects eat memory in foreach loops.

well not iterating through lines because while condition have setted fgets

$fh = fopen('newsymbols.txt','r') or die($php_errormsg); while ($s = fgets($fh,1024)) { if ( feof($fh)) {