'number of visits' (sort by DESC)
function yourls_stats_countries_map( $countries ) {
$map = array(
'cht' => 't',
'chs' => '440x220',
'chtm'=> 'world',
'chco'=> 'FFFFFF,9090AA,202040',
'chld'=> join('' , array_keys( $countries ) ),
'chd' => 't:'. join(',' , $countries ),
'chf' => 'bg,s,EAF7FE'
);
$map_src = 'http://chart.apis.google.com/chart?' . http_build_query( $map );
echo "
";
}
// Echoes an image tag of Google Charts pie from sorted array of 'data' => 'value' (sort by DESC). Optional $limit = (integer) limit list of X first countries, sorted by most visits
function yourls_stats_pie( $data, $limit = 10, $size = '340x220', $colors = '202040,9090AA' ) {
// Trim array: $limit first item + the sum of all others
if ( count( $data ) > $limit ) {
$i= 0;
$trim_data = array('Others' => 0);
foreach( $data as $item=>$value ) {
$i++;
if( $i <= $limit ) {
$trim_data[$item] = $value;
} else {
$trim_data['Others'] += $value;
}
}
$data = $trim_data;
}
// Scale items
$_data = yourls_scale_data( $data );
// Hmmm, pie
$pie = array(
'cht' => 'p',
'chs' => $size,
'chd' => 't:'.( join(',' , $_data ) ),
'chco'=> $colors,
'chl' => join('|' , array_keys( $data ) )
);
$pie_src = 'http://chart.apis.google.com/chart?' . http_build_query( $pie );
echo "
";
}
// Build a list of all daily values between d1/m1/y1 to d2/m2/y2.
function yourls_build_list_of_days( $dates ) {
/* Say we have an array like:
$dates = array (
2009 => array (
'08' => array (
29 => 15,
30 => 5,
),
'09' => array (
'02' => 3,
'03' => 5,
'04' => 2,
'05' => 99,
),
),
)
*/
if( !$dates )
return array();
// Get first & last years from our range. In our example: 2009 & 2009
$first_year = key( $dates );
$last_year = end( array_keys($dates) );
reset( $dates );
// Get first & last months from our range. In our example: 08 & 09
$first_month = key( $dates[$first_year] );
$last_month = end( array_keys($dates[$last_year]) );
reset( $dates );
// Get first & last days from our range. In our example: 29 & 05
$first_day = key( $dates[$first_year][$first_month] );
$last_day = end( array_keys($dates[$last_year][$last_month]) );
// Now build a list of all years (2009), month (08 & 09) and days (all from 2009-08-29 to 2009-09-05)
$list_of_years = array();
$list_of_months = array();
$list_of_days = array();
for ( $year = $first_year; $year <= $last_year; $year++ ) {
$_year = sprintf('%04d', $year);
$list_of_years[$_year] = $_year;
$current_first_month = ( $year == $first_year ? $first_month : '01' );
$current_last_month = ( $year == $last_year ? $last_month : '12' );
for ( $month = $current_first_month; $month <= $current_last_month; $month++ ) {
$_month = sprintf('%02d', $month);
$list_of_months[$_month] = $_month;
$current_first_day = ( $year == $first_year && $month == $first_month ? $first_day : '01' );
$current_last_day = ( $year == $last_year && $month == $last_month ? $last_day : yourls_days_in_month($month, $year) );
for ( $day = $current_first_day; $day <= $current_last_day; $day++ ) {
$day = sprintf('%02d', $day);
$list_of_days["$_year-$_month-$day"] = isset( $dates[$_year][$_month][$day] ) ? $dates[$_year][$_month][$day] : 0;
}
}
}
return array(
'list_of_days' => $list_of_days,
'list_of_months' => $list_of_months,
'list_of_years' => $list_of_years,
);
}
// Echoes an image tag of Google Charts line graph from array of values (eg 'number of clicks'). $legend1_list & legend2_list are values used for the 2 x-axis labels
function yourls_stats_line( $values, $legend1_list, $legend2_list ) {
// If we have only 1 day of data, prepend a fake day with 0 hits for a prettier graph
if ( count( $values ) == 1 )
array_unshift( $values, 0 );
$values = yourls_array_granularity( $values, 100 );
// If x-axis labels have only 1 value, double it for a nicer graph
if( count( $legend1_list ) == 1 )
$legend1_list[] = current( $legend1_list );
if( count( $legend2_list ) == 1 )
$legend2_list[] = current( $legend2_list );
// Make the chart
$legend1 = join('|', $legend1_list );
$legend2 = join('|', $legend2_list );
$max = max( $values );
if ( $max >= 4 ) {
$label_clicks = '0|'.intval( $max / 4 ).'|'.intval( $max / 2 ).'|'.intval( $max / 1.5 ).'|'.$max;
} else {
$label_clicks = array();
for ($i = 0; $i <= $max; $i++) {
$label_clicks[] = $i;
}
$label_clicks = join( '|', $label_clicks );
}
$line = array(
'cht' => 'lc',
'chs' => '440x220',
'chxt'=> 'x,x,y',
'chd' => 't:'.( join(',' , $values ) ),
'chds' => '0,'.$max,
'chxl'=> '0:|'. $legend1 .'|1:|'. $legend2 .'|2:|'. $label_clicks
);
$line_src = 'http://chart.apis.google.com/chart?' . http_build_query( $line );
echo "
";
}
// Return the number of days in a month. From php.net, used if PHP built without calendar functions
function yourls_days_in_month($month, $year) {
// calculate number of days in a month
return $month == 2 ? ($year % 4 ? 28 : ($year % 100 ? 29 : ($year % 400 ? 28 : 29))) : (($month - 1) % 7 % 2 ? 30 : 31);
}
// Get max value from date array of 'year-month-day' = 'hits'
function yourls_stats_get_best_day( $list_of_days ) {
$max = 0; $day = 0;
$max = max( $list_of_days );
foreach( $list_of_days as $k=>$v ) {
if ( $v == $max )
return array( 'day' => $k, 'max' => $max );
}
}
// Return domain of a URL
function yourls_get_domain( $url, $include_scheme = false ) {
$parse = parse_url( $url );
$host = $parse['host'];
$scheme = $parse['scheme'];
if ( $include_scheme )
$host = $scheme.'://'.$host;
return $host;
}
// Scale array of data from 0 to 100 max
function yourls_scale_data( $data ) {
$max = max( $data );
if( $max > 100 ) {
foreach( $data as $k=>$v ) {
$data[$k] = intval( $v / $max * 100 );
}
}
return $data;
}
// Tweak granularity of array $array: keep only $grain values. This make less accurate but less messy graphs when too much values. See http://code.google.com/apis/chart/formats.html#granularity
function yourls_array_granularity( $array, $grain = 100, $preserve_max = true ) {
if ( count( $array ) > $grain ) {
$max = max( $array );
$step = intval( count( $array ) / $grain );
$i = 0;
$preserved = false;
// Loop through each item and unset except every $step (optional preserver the max value)
foreach( $array as $k=>$v ) {
$i++;
if ( $i % $step != 0 ) {
if ( $preserve_max == false ) {
unset( $array[$k] );
} else {
if ( $v == $max ) {
if( $preserved == false )
unset( $array[$k] );
$preserved = true;
} else {
unset( $array[$k] );
}
}
}
}
}
return $array;
}