Writing to file

[hazz995]

I tried writing to a file, all existing code gets deleted.

I tried appending but that only adds to the end of the file.

How can I add to the start of the file without deleting the existing contents?

Thanks.

[teamatomic]

rewind($fh);

fwrite($fh, "$new_contents");

 

 

HTH

Teamatomic

 

[hazz995]

rewind($fh);

fwrite($fh, "$new_contents");

I've got it to write at the start of the file thanks to rewind but still one problem, if I open the file with r+ it overwrites existing data as it goes along instead of just nicely writing text at the start of the file without deleting anything.

 

Start:

existing text

 

Run code: (inserting the text "hello" at the start)

helloing text

 

What I'm trying to achieve:

helloexisting text

 

I tried changing the r+ to w but that just wipes everything when writing.

$string = "test text";
$fp = fopen("test.php", 'r+');
rewind($fp);
fwrite($fp, $string);
fclose($fp);

[teamatomic]

rewind() resets the pointer to the beginning of the file. To write a new line you need to add the \n at the end of the line, else it overwrite the bytes.

 

To do what you want you need to read the file into a string then just concatenate it to your new string and rewrite it to file.

 

<?php

$string = "test";

$file = file_get_contents("./links.txt");

$string .= "$file";

file_put_contents("./links.txt", "$string");

?>

 

 

HTH

Teamatomic