Blogtimes
使用方法：将代码复制保存为:blogtimes.php放入plugins文件夹，active。在适当位置插入
HTML:
图片可以从我这copy。:-)
PHP:
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<?php
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/*
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Plugin Name: Blogtimes
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Plugin URI:
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Description: To generate a bar graph image showing when posts are made during a period of time. For this to work <code>wp-images/blogtimes.png must be writable by the web server. Original code by Sanjay Sheth of sastools.com.
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Author: Matt Mullenweg
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Author URI: http://photomatt.net
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Version: 0.1
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*/
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// Main function to invoke to generate the bar graph pass it the width/height/padding/title that you want
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function updateBlogTimePNG($dummy = 'placeholder', $saveFile = '', $last_x_days = 30,
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$width = 480,$height = 65,$horzpadding = 5,$vertpadding = 5,
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$show_ticks = 1,
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$title = "Blog Post Times")
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{
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if (!$saveFile) $saveFile = ABSPATH . 'wp-images/blogtimes.png';
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// constants defining image
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$fontheight = ImageFontHeight(2);
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$fontwidth = ImageFontWidth(2);
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$monthtext = "Last $last_x_days days";
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$unitname = "hour of day";
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$show_units = 1;
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// create the basic image
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$im = @ImageCreate ($width, $height)
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// generate some colors, format: RED, GREEN, BLUE
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$white = ImageColorAllocate ($im, 255,255,255);
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$black = ImageColorAllocate ($im, 0,0,0);
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$beige = ImageColorAllocate ($im, 238,238,238);
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$blue = ImageColorAllocate ($im, 102,102,102);
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$silver = ImageColorAllocate ($im, 0xE0,0xE0,0xE0);
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// define what color to use where
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$back_color = $white; # this is background of entire image (text & all)
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$box_color = $beige; # this is background of just the posts box
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$text_color = $black;
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$line_color = $blue; # this is color of lines for each post
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$border_color = $black;
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# query the db and build the list
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$posttimes = getPostTimes(30);
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# calculate how many intervals to show
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if ($intervals>= 24) $i_mod = 1;
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else if ($intervals>= 12) $i_mod = 2;
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else if ($intervals>= 8) $i_mod = 3;
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else if ($intervals>= 6) $i_mod = 4;
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else if ($intervals>= 4) $i_mod = 6;
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else if ($intervals>= 3) $i_mod = 8;
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else if ($intervals>= 2) $i_mod = 16;
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else $i_mod = 24;
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# fill the image with the background color
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ImageFill($im, 0, 0, $back_color);
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# create a filled rectangle with a solid border
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$left = $horzpadding; $right = $width - $horzpadding;
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$top = $fontheight + $vertpadding;
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$bottom = $height - $vertpadding - $fontheight;
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if ($show_units)
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$bottom -= $fontheight;
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ImageFilledRectangle($im, $left,$top,$right,$bottom, $box_color);
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ImageRectangle($im, $left,$top,$right,$bottom, $border_color);
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# write title and monthtext
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ImageString($im, 2, $left, 0, $title,$text_color);
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ImageString($im, 2, $right - $txtwidth, 0,$monthtext,$text_color);
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# add the legend on the bottom
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for ($i = 0; $i <= 23; $i=$i+1)
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{
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if ($i % $i_mod == 0) {
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$curX = $left + ($right - $left)/24 * $i;
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if ($i> 9) {$strX = $curX - 5;}
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else {$strX = $curX - 2;}
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ImageString($im, 2, $strX , $bottom, $i, $text_color);
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if ($show_ticks)
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ImageLine($im, $curX, $bottom, $curX, $bottom - 5, $tick_color);
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}
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}
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ImageString($im, 2, $right - 5, $bottom, 0, $text_color);
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if ($show_units) {
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$curY = $bottom + $fontheight + 2;
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ImageString($im, 2, $curX, $curY, $unitname, $text_color);
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}
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# now we draw the lines for each post
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# the post times should be in terms of # of minutes since midnight
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for ($i = 0; $i <$arrcount; $i++)
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{
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# make sure postTime is between 0 and 1439
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# calculate the horz pos inside box
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$curX = $left + ($right - $left)/1440 * $curPostTime; # 1440 minutes per day
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# draw the post line
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ImageLine($im, $curX, $bottom, $curX, $top, $line_color);
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}
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# save the file to disk in PNG format
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ImagePNG ($im,$saveFile);
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}
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# This function will query the db for all the posts in last x days
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# and build an array of # of minutes since midnight for each post
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function getPostTimes($last_x_days=30)
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{
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$result = $wpdb->get_results("
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SELECT HOUR(post_date)*60+MINUTE(post_date) AS totmins
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FROM $tableposts
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WHERE (TO_DAYS(CURRENT_DATE) - TO_DAYS(post_date)) <= $last_x_days
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AND post_status = 'publish'
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ORDER BY totmins ASC
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");
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foreach ($result as $row) {
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$postTimes[] = $row->totmins;
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}
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return $postTimes;
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}
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add_action('publish_post', 'updateBlogTimePNG');
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?>