improve tag cloud font size scaling

[github/shaarli/Shaarli.git] / index.php

diff --git a/index.php b/index.php
index 35e83eb54498613497c9f926939e38dc2eab6edd..7843f2b8ede24f83b02bce9f7d090c3361ad6f48 100644 (file)
--- a/index.php
+++ b/index.php
@@ -89,7 +89,7 @@ header("Cache-Control: post-check=0, pre-check=0", false);
 header("Pragma: no-cache");
 
 // Directories creations (Note that your web host may require different rights than 705.)
-if (!is_writable(realpath(dirname(__FILE__)))) die('<pre>ERROR: Shaarli does not have the right to write in its own directory ('.realpath(dirname(__FILE__)).').</pre>');
+if (!is_writable(realpath(dirname(__FILE__)))) die('<pre>ERROR: Shaarli does not have the right to write in its own directory.</pre>');
 
 // Handling of old config file which do not have the new parameters.
 if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.htmlspecialchars(indexUrl());
@@ -118,7 +118,7 @@ function checkphpversion()
     if (version_compare(PHP_VERSION, '5.1.0') < 0)
     {
         header('Content-Type: text/plain; charset=utf-8');
-        echo 'Your server supports PHP '.PHP_VERSION.'. Shaarli requires at least php 5.1.0, and thus cannot run. Sorry.';
+        echo 'Your PHP version is obsolete! Shaarli requires at least php 5.1.0, and thus cannot run. Sorry. Your PHP version has known security vulnerabilities and should be updated as soon as possible.';
         exit;
     }
 }
@@ -1251,8 +1251,9 @@ function renderPage()
         ksort($tags);
         $tagList=array();
         foreach($tags as $key=>$value)
+       // Tag font size scaling: default 15 and 30 logarithm bases affect scaling, 22 and 6 are arbitrary font sizes for max and min sizes.
         {
-            $tagList[$key] = array('count'=>$value,'size'=>max(40*$value/$maxcount,8));
+            $tagList[$key] = array('count'=>$value,'size'=>log($value, 15) / log($maxcount, 30) * (22-6) + 6);
         }
         $PAGE = new pageBuilder;
         $PAGE->assign('linkcount',count($LINKSDB));
@@ -2167,13 +2168,13 @@ function templateTZform($ptz=false)
                 $continent=substr($tz,0,$spos); $city=substr($tz,$spos+1);
                 $continents[$continent]=1;
                 if (!isset($cities[$continent])) $cities[$continent]='';
-                $cities[$continent].='<option value="'.$city.'"'.($pcity==$city?'selected':'').'>'.$city.'</option>';
+                $cities[$continent].='<option value="'.$city.'"'.($pcity==$city?' selected':'').'>'.$city.'</option>';
             }
         }
         $continents_html = '';
         $continents = array_keys($continents);
         foreach($continents as $continent)
-            $continents_html.='<option  value="'.$continent.'"'.($pcontinent==$continent?'selected':'').'>'.$continent.'</option>';
+            $continents_html.='<option  value="'.$continent.'"'.($pcontinent==$continent?' selected':'').'>'.$continent.'</option>';
         $cities_html = $cities[$pcontinent];
         $timezone_form = "Continent: <select name=\"continent\" id=\"continent\" onChange=\"onChangecontinent();\">${continents_html}</select>";
         $timezone_form .= "&nbsp;&nbsp;&nbsp;&nbsp;City: <select name=\"city\" id=\"city\">${cities[$pcontinent]}</select><br />";