[SOLVED] Reliably determining what OS a php script is run on

[jordanwb]

By searching google on how to detect the OS(server) with php I found this:

 

php_uname('s')

 

On my server it returns Linux, which is correct, what would it say for Unix, Mac or Windows. Also what about BSD, is that Unix?

[peasepud]

Im not sure on all the possible answers but I believe that PHP_OS will supply just the OS name rather than all the other gumph that uname supplies.

 

 

[jordanwb]

Well on my server it says Linux, which is also correct. I need the info to determine line endings for writing files in PHP.

[trq]

I need the info to determine line endings for writing files in PHP.

 

As far as I'm aware all operating systems use \n except windows which I believe is \n\r

[DarkWater]

You can just use the PHP_EOL constant.

[discomatt]

I simply use this function

 

fix_endline( $string ) {
  return str_replace( array("\r\n", "\r"), "\n", $string );
}

 

Converts all possible 'alternate' endline combinations (\r\n = Windows, \r = OS9 ) to simply \n and is quite fast.

[jordanwb]

I need the info to determine line endings for writing files in PHP.

 

As far as I'm aware all operating systems use \n except windows which I believe is \n\r

 

Apparently Mac uses a solitary \r. But Mac OS X may use \n because Mac OS X is basically a unix based OS.

 

You can just use the PHP_EOL constant.

 

Now that's convenient.

 

I simply use this function

 

fix_endline( $string ) {
  return str_replace( array("\r\n", "\r"), "\n", $string );
}

 

Converts all possible 'alternate' endline combinations (\r\n = Windows, \r = OS9 ) to simply \n and is quite fast.

 

But that may not give you the right one. For Widnows having a solitary \n will screw up editing the file with notepad or whatever.

[DarkWater]

You can just use the PHP_EOL constant.

Now that's convenient.

 

Indeed it is.  And you can always put it into a variable if you want, or just do something like:

$string = "foo\nbar";

$fixed = str_replace("\n", PHP_EOL, $string);