htdocs/graph.php
author Dan
Sun, 14 Dec 2008 00:51:06 -0500
changeset 35 a76ae7eaa2eb
parent 34 a8daa2016cf1
child 43 ce2e9caf2dfa
permissions -rw-r--r--
Updated news page
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<?php
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require('../stats-fe.php');
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require('../graphs.php');
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require('../timezone.php');
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$channel_list = stats_channel_list();
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$first_channel = $channel_list[0];
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$channel = ( isset($_REQUEST['channel']) && in_array($_REQUEST['channel'], $channel_list) ) ? $_REQUEST['channel'] : $first_channel;
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$g = new GraphMaker(); // _Compat();
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$g->SetGraphPadding(20, 30, 20, 15);
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$g->SetGraphAreaHeight(200);
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$g->SetBarDimensions(26, 0);
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$g->SetBarPadding(7);
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$g->SetGraphBackgroundTransparent(240, 250, 255, 0);
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$g->SetGraphTransparency(25);
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// generate the data
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// we're doing this by absolute hours, not by strictly "24 hours ago", e.g. on-the-hour stats
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$mode = ( isset($_GET['mode']) ) ? $_GET['mode'] : 'lastday';
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switch ( $mode )
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{
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  case 'lastday':
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  default:
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    $graph_title = $channel . ' message count - last 24 hours';
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    $this_hour = gmmktime(gmdate('H'), 0, 0);
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    $graphdata = array();
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    for ( $i = 23; $i >= 0; $i-- )
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    {
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      $basetime = $this_hour - ( $i * 3600 );
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      $ts = date('H:i', $basetime);
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      $basetime += 3600;
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      $graphdata[$ts] = stats_message_count($channel, 60, $basetime);
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    }
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    break;
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  case 'lastweek':
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    $graph_title = $channel . ' activity - last 14 days';
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    $this_day = gmmktime(0, 0, 0);
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    $graphdata = array();
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    for ( $i = 13; $i >= 0; $i-- )
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    {
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      $basetime = $this_day - ( $i * 86400 );
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      $ts = date('D n/j', $basetime);
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      $basetime += 86400;
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      $graphdata[$ts] = stats_message_count($channel, 1440, $basetime);
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    }
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    $g->SetBarPadding(12);
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    break;
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  case 'lastmonth':
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    $graph_title = $channel . ' activity - last 30 days';
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    $this_day = gmmktime(0, 0, 0);
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    $graphdata = array();
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    for ( $i = 29; $i >= 0; $i-- )
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    {
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      $basetime = $this_day - ( $i * 86400 );
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      $ts = date('Y-m-d', $basetime);
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      $basetime += 86400;
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      $graphdata[$ts] = stats_message_count($channel, 1440, $basetime);
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    }
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    $g->SetBarPadding(15);
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    break;
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}
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$max = max($graphdata);
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// Determine axis interval
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$interval = 2;
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if ( $max > 20 )
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  $interval = 4;
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if ( $max > 25 )
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  $interval = 5;
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if ( $max > 50 )
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  $interval = 10;
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if ( $max > 200 )
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  $interval = 40;
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if ( $max > 500 )
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  $interval = 80;
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if ( $max > 1000 )
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  $interval = 100;
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if ( $max > 2000 )
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  $interval = 200;
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if ( $max > 3200 )
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  $interval = 300;
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if ( $max > 4000 )
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  $interval = 500;
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if ( $max > 5000 )
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  $interval = 1000;
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if ( $max > 15000 )
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  $interval = 1500;
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if ( $max > 30000 )
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  $interval = round($max / 10);
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$g->SetBarData($graphdata);
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$g->SetAxisStep($interval);
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$g->SetGraphTitle($graph_title);
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$g->DrawGraph();
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