Re: [PHP3] Download a file // IF question // Read a file!

In article <014c01bfd774$258dee60$cf1013c2@sune311>, sune@drs.no ("Sune Alexandersen") wrote: > 1. I¨d like to be able to click a link, and instead of opening the file > in the browser, to be able to download it. How can this be done? Search the archives for "octet-stream" and do all the headers you can find to make it work. Be careful -- different browsers are following different "standards". > 2. I write an IF like this: > IF(condition) > { this thing } > elseif(condition 2) > { this thing } > else(condition 3) > { the other thing } > But I bet my mums socks it can be done otherwise.. How about something like > > IF(condition) OR (condition 2) > { this thing } > else(condition 3) > { the other thing } > > how would I accomplish that? if (condition OR condition2) { this thing } eiseif (condition3) { the other thing} > 3. I would like to read the contents of a text file on a remote server > and compare to a value. This is to check to see if there is any update of my > program. Lets say I have a file called www.someserver.com/updates.txt > containing only the digit 2.1 .. I would like the script to compare 2.1 with > the current version and to echo UPDATE AVAILABLE if the number is greater. > Ive tried with > > // get contents of a file into a string > $filename = "/usr/local/something.txt"; > $fd = fopen ($filename, "r"); > $contents = fread ($fd, filesize ($filename)); > fclose ($fd); $filename = fopen("http://www.someserver.com/updates.txt", 'r') or die("remove fiel not accessible."); > as mentioned in the online manual, but I only succeed in opening a local > file.. And how can i compare a number with a decimal? PHP will take care of that for you for a single decimal: if ($remote_version > $local_version){ echo "Update Available"; } However, version numbers with multiple decimal points is another matter entirely... So if you need 2.1.1 to work, you'll have to write a custom comparison function... function versioncmp($version1, $version2){ //Returns 0 if two versions are equal. //Returns -1 if $version1 is less than $version2 //Returns 1 if $version1 is greater than $version2 //See strcmp //NOTE: Does not handle "Beta", "RC", or any other non-numeric version //designation. $parts1 = explode('.', $version1); $parts2 = explode('.', $version2); $result = 0; while (!$result && list(,$v1) = each($parts1) && list(,$v2) = each($parts2)){ if ($v1 < $v2){ $result = -1; } elseif ($v1 > $v2){ $result = 1; } } return $result; } -- Richard Lynch | If this was worth $$$ to you, buy a CD US Customer Support Director | from one of the artists listed here: Zend Technologies USA | http://www.L-I-E.com/artists.htm http://www.zend.com | (this has nothing to do with Zend, duh!)