Fwrite保存一个空文件

Question

I have a code in which should open an existing text file into my server, save the text into a variable, then filter the text contained within this variable and save again, as you can see below:

Text File:

Descrição: lorem impsum is a dollar do dolla do dolla style user humam

Source Code:

$filename = "prods/".$value;
$handle = fopen($filename, "w+");
$contents = fread($handle, filesize($filename));
$newcontent .= str_replace("Descrição:", "Descricao:", $contents);
fwrite($handle,$newcontent);
fclose($handle);

The problem is the command write is saving the file again with null text inside him, how can I solve this?

Answer 1

According to http://php.net/manual/en/function.fopen.php:

'w+' Open for reading and writing; place the file pointer at the beginning of the file and truncate the file to zero length. If the file does not exist, attempt to create it.

You are therefore reading an empty string, and writing such a string back too.

The simplest way to solve your problem might be:

$filename = "prods/".$value;
$contents = file_get_contents($filename);
$newcontent .= str_replace("Descrição:", "Descricao:", $contents);
file_put_contents($filename, $newcontent);