php - [function.file-get-contents]: failed to open stream: Invalid argument -

i have tried solution problem , this

warning: fopen() [function.fopen]: filename cannot empty 

and also

warning: fclose() expects parameter 1 resource,  

like backslash , forward slash problem

but still facing problem please me.. trying change content of file on server file..

$frserver =  file_get_contents("http:\\ip here\\cdr\\settings.txt"); 

(i have tried single slash , forward slash also) same issue.. after getting file, cut character

$result = substr($frserver, 12, 1); 

which returns me integer value

now same procedure local computer

$frlocal =  file_get_contents("c:\\settings.txt", "r"); $result1 = substr($frlocal, 12, 1); 

now comparing both characters..if same no issue if not same...write in server file local file content.

if($result == $result1){     echo "no file update"; } else{ $fh = fopen( $frserver, "w" ); fwrite( $fh, $frlocal );     fclose( $fh );     echo "file updated"; 

}

please have look.

$frserver =  file_get_contents("http:\\ip here\\cdr\\settings.txt"); 

replace double backslashes \\ 1 slash /

$frserver =  file_get_contents("http://ip here/cdr/settings.txt"); 

web urls using slashes not backslashes.

here must provide path file...

$fh = fopen( "http://ip here/cdr/settings.txt", "w" );