fwrite Argument #1 $stream must be of type resource bool given

This error message is indicating that the first argument passed to the fwrite() function is expected to be a resource type, but instead a boolean value was provided.

The fwrite() function is used to write data to a file. It takes three arguments:

1. The first argument is the file pointer (resource type) that points to the file that you want to write to.
2. The second argument is the data that you want to write to the file.
3. The third argument is the length of the data that you want to write.

Example:

$file = fopen("data.txt", "w");
fwrite($file, "Hello World!");
fclose($file);

In the above example, we are opening a file named "data.txt" in write mode and then writing the string "Hello World!" to it using the fwrite() function.

If the first argument passed to the fwrite() function is not a file pointer (resource type), you will get the "Argument #1 ($stream) must be of type resource, bool given" error message. This can happen if the fopen() function fails to open the file and returns a boolean value (false) instead of a resource type