note 109489 added to function.version-compare

This little script can perhaps help you understand version comparison a little better - the output is displayed in the comment at the top. Tweak the list of versions if you need more examples... <?php # 1 lt 1.0 # 1.0 lt 1.01 # 1.01 eq 1.1 # 1.1 lt 1.10 # 1.10 gt 1.10b # 1.10b lt 1.10.0 header('Content-type: text/plain'); $versions = array( '1', '1.0', '1.01', '1.1', '1.10', '1.10b', '1.10.0', ); $comps = array( -1 => 'lt', 0 => 'eq', 1 => 'gt' ); foreach ($versions as $version) { if (isset($last)) { $comp = version_compare($last, $version); echo str_pad($last,8,' ',STR_PAD_LEFT) . " {$comps[$comp]} {$version}\n"; } $last = $version; } ?> ---- Server IP: 192.41.42.26 Probable Submitter: 24.58.63.241 ---- Manual Page -- http://www.php.net/manual/en/function.version-compare.php Edit -- https://master.php.net/note/edit/109489 Del: integrated -- https://master.php.net/note/delete/109489/integrated Del: useless -- https://master.php.net/note/delete/109489/useless Del: bad code -- https://master.php.net/note/delete/109489/bad+code Del: spam -- https://master.php.net/note/delete/109489/spam Del: non-english -- https://master.php.net/note/delete/109489/non-english Del: in docs -- https://master.php.net/note/delete/109489/in+docs Del: other reasons-- https://master.php.net/note/delete/109489 Reject -- https://master.php.net/note/reject/109489 Search -- https://master.php.net/manage/user-notes.php