PHP Delete txt file specify line and read txt document data by line method

This article describes the PHP delete txt file to specify the line and read the TXT document data by line method. Share to everyone for your reference, as follows:

To loop write values to the TXT file:

$keys = Range (1,999), $file = fopen (' Key_11010000.txt ', "w"), foreach ($keys as $key) {  fwrite ($file, "$key \ r \ n");} Fclose ($file); $f 1 = fopen (' key_11010000.txt ', ' R '), while (!feof ($f 1)) {  $line =fgets ($f 1);  $line = Trim ($line);  $arr [] = $line;} $keys = Array_filter ($arr); Var_dump ($keys);

Read TXT document data by line:

$f 1 = fopen (' key_11010000.txt ', ' R '), while (!feof ($f 1)) {  $line =fgets ($f 1);  $line = Trim ($line);  $arr [] = $line;} $keys = Array_filter ($arr); Var_dump ($keys);d ie;

I hope this article is helpful to you in PHP programming.