Problem reading TXT file

One. How do I write the content to the first line of the TXT file each time.

Two. How do I read the last line of the TXT file?

Reply to discussion (solution)

One:

$handle  =  fopen (' a.txt ',  ' r+ '); Rewind ($handle); Fwrite ($handle, "This is the first line \ r \ n"); fclose ($handle);

Two:

$handle  =  fopen (' a.txt ',  ' r+ '); $arr =array (); while ($line =fgets ($handle)) {    $arr []= $line;} Fclose ($handle); Echo End ($arr);

One. That write txt first line to the original content of the TXT file is cleared, I want to keep the original content, new content inserted into the first line.

$str = "This is the first line \ r \ n";  $handle  =  fopen (' a.txt ',  ' r+ ');   while ($line =fgets ($handle)) {    $str. = $line;   }   Fclose ($handle);   File_put_contents (' A.txt ', $str);

It seems that there is no direct function to achieve, can only loop out the data, thank you

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