Day 8535 饭否论坛签名图插件

以上为演示。
写完橙语君、朱鹭子和阿求三个单词机器人后,就想做一个页面把这些Bot们都列出来(这个页面现在在这里),以便好奇的人点了Source Name后能同时看到另外两个机器人,多点关注度,可是饭否本身的签名图插件因为年代久远,效果实在不敢恭维:

而后想起以前用过的、WandSea编写的TwSig(推特签名图),决定趁这这个机会学习一下相关函数的使用方法,成果就是开头的那个样子。

继续阅读可以看到完整代码以及下载,初学PHP之故,代码只是能用就OK了,而且还借用了很多别人的方法,肯定有很多吐槽的地方,还请多包涵。

代码下载(不含调用的字体):Fanfou Forum Signature Plugin

主要知识点:file_get_contents、json_decode、imagecreatetruecolor、imagecopyresampled、imagecolorallocate、imagettftext、imagecopy、imagepng

 false){
				$r_json = json_decode($r_json, true);
				if(!$r_json['error']){
					$font = 'wqy.ttc';
					$img = imagecreatetruecolor(400,150);
					$img_back = imagecreatefrompng('sigback.png');
					imagecopyresampled($img,$img_back,0,0,0,0,400,150,400,150);
					$color_white = imagecolorallocate($img,255,255,255);
					$color_skyblue = imagecolorallocate($img,0,120,255);
					$txt_id = $r_json['name'];
					$txt_fo = $r_json['friends_count'];
					$txt_foer = $r_json['followers_count'];
					$txt_msgc = $r_json['statuses_count'];
					$txt_recentmsg = $r_json['status']['text'];
					if(!$txt_recentmsg || $txt_recentmsg == '') $txt_recentmsg = '我只向关注我的人公开我的消息。';
					if(strlen($txt_recentmsg) > 315) $txt_recentmsg = cut_str($txt_recentmsg,105);
					$txt_avatar = $r_json['profile_image_url_large'];
					if(!$txt_avatar || $txt_avatar == '') $txt_avatar = 'avatar00.jpg';
					$pic_avatar = imagecreatefromjpeg($txt_avatar);
					imagetextouter($img,10,132,33,'#EEFFFF',$font,$txt_id,'#66CCFF');
					imagettftext($img,9,0,133,53,$color_white,$font,'关注/'.$txt_fo.' '.'关注者/'.$txt_foer.' '.'消息数/'.$txt_msgc);
					imagettftext($img,9,0,131,51,$color_skyblue,$font,'关注/'.$txt_fo.' '.'关注者/'.$txt_foer.' '.'消息数/'.$txt_msgc);
					imagettftext($img,9,0,132,71,$color_white,$font,autowrap(9,0,$font,$txt_recentmsg,260));
					imagettftext($img,9,0,131,70,$color_skyblue,$font,autowrap(9,0,$font,$txt_recentmsg,260));
					imagecopy($img,$pic_avatar,20,27,0,0,96,96);
				}else{
					$img = imagecreatefrompng('sig500.png');
				}
			}else{
				$img = imagecreatefrompng('sig500.png');
			}
		}else{
			$img = imagecreatefrompng('sig404.png');
		}
		imagepng($img);
		imagedestroy($img);
		imagedestroy($img_back);
	}else{
		$img = imagecreatefrompng('sig502.png');
		imagepng($img);
		imagedestroy($img);
	}

	function autowrap($fontsize, $angle, $fontface, $string, $width) {
	// Autowrap function by NetPuter
	// From: http://orzdream.com/2010/08/auto-wrap-in-php-gd/
	// 这几个变量分别是 字体大小, 角度, 字体名称, 字符串, 预设宽度 
	$content = "";
 
	// 将字符串拆分成一个个单字 保存到数组 letter 中
	for ($i=0;$i $width) && ($content !== "")) {
			$content .= "\n";
		}
		$content .= $l;
	}
	return $content;
	}

	function imagetextouter(&$im, $size, $x, $y, $color, $fontfile, $text, $outer)
	// Image Outerliner
	// From http://www.ugia.cn/?p=88
	{
		if (!function_exists('ImageColorAllocateHEX'))
		{
			function ImageColorAllocateHEX($im, $s)
			{
			   if($s{0} == "#") $s = substr($s,1);
			   $bg_dec = hexdec($s);
			   return imagecolorallocate($im,
						   ($bg_dec & 0xFF0000) >> 16,
						   ($bg_dec & 0x00FF00) >>  8,
						   ($bg_dec & 0x0000FF)
						   );
			}
		}
		$ttf = false;
		if (is_file($fontfile))
		{
			$ttf = true;
			$area = imagettfbbox($size, $angle, $fontfile, $text);
			$width  = $area[2] - $area[0] + 2;
			$height = $area[1] - $area[5] + 2;
		}
		else
		{
			$width  = strlen($text) * 10;
			$height = 16;
		}
		$im_tmp = imagecreate($width, $height);
		$white = imagecolorallocate($im_tmp, 255, 255, 255);
		$black = imagecolorallocate($im_tmp, 0, 0, 0);
		$color = ImageColorAllocateHEX($im, $color);
		$outer = ImageColorAllocateHEX($im, $outer);
		if ($ttf)
		{
			imagettftext($im_tmp, $size, 0, 0, $height - 2, $black, $fontfile, $text);
			imagettftext($im, $size, 0, $x, $y, $color, $fontfile, $text);
			$y = $y - $height + 2;
		}
		else
		{
			imagestring($im_tmp, $size, 0, 0, $text, $black);
			imagestring($im, $size, $x, $y, $text, $color);
		}
		for ($i = 0; $i < $width; $i ++)
		{
			for ($j = 0; $j < $height; $j ++)
			{
				$c = ImageColorAt($im_tmp, $i, $j);
				if ($c !== $white)
				{
					ImageColorAt ($im_tmp, $i, $j - 1) != $white || imagesetpixel($im, $x + $i, $y + $j - 1, $outer);
					ImageColorAt ($im_tmp, $i, $j + 1) != $white || imagesetpixel($im, $x + $i, $y + $j + 1, $outer);
					ImageColorAt ($im_tmp, $i - 1, $j) != $white || imagesetpixel($im, $x + $i - 1, $y + $j, $outer);
					ImageColorAt ($im_tmp, $i + 1, $j) != $white || imagesetpixel($im, $x + $i + 1, $y + $j, $outer);
					ImageColorAt ($im_tmp, $i - 1, $j - 1) != $white || imagesetpixel($im, $x + $i - 1, $y + $j - 1, $outer);
					ImageColorAt ($im_tmp, $i + 1, $j - 1) != $white || imagesetpixel($im, $x + $i + 1, $y + $j - 1, $outer);
					ImageColorAt ($im_tmp, $i - 1, $j + 1) != $white || imagesetpixel($im, $x + $i - 1, $y + $j + 1, $outer);
					ImageColorAt ($im_tmp, $i + 1, $j + 1) != $white || imagesetpixel($im, $x + $i + 1, $y + $j + 1, $outer);
				}
			}
		}
		imagedestroy($im_tmp);
	}

	function cut_str($sourcestr,$cutlength){
		//Double-byted chars substr function
		//From: http://hi.baidu.com/ayu1106/blog/item/b62d73ede57521d7b31cb1c0.html
		$returnstr='';
		$i=0;
		$n=0;
		$str_length=strlen($sourcestr);//字符串的字节数
		while (($n<$cutlength) and ($i<=$str_length)){
		   $temp_str=substr($sourcestr,$i,1);
		   $ascnum=Ord($temp_str);//得到字符串中第$i位字符的ascii码
		   if ($ascnum>=224){ //如果ASCII位高与224,
			$returnstr=$returnstr.substr($sourcestr,$i,3); //根据UTF-8编码规范,将3个连续的字符计为单个字符
			$i=$i+3; //实际Byte计为3
			$n++; //字串长度计1
		   }elseif ($ascnum>=192){ //如果ASCII位高与192,
			$returnstr=$returnstr.substr($sourcestr,$i,2); //根据UTF-8编码规范,将2个连续的字符计为单个字符
			$i=$i+2; //实际Byte计为2
			$n++; //字串长度计1
		   }elseif ($ascnum>=65 && $ascnum<=90){ //如果是大写字母,
			$returnstr=$returnstr.substr($sourcestr,$i,1);
			$i=$i+1; //实际的Byte数仍计1个
			$n++; //但考虑整体美观,大写字母计成一个高位字符
		   }else{ //其他情况下,包括小写字母和半角标点符号,
			$returnstr=$returnstr.substr($sourcestr,$i,1);
			$i=$i+1; //实际的Byte数计1个
			$n=$n+0.5; //小写字母和半角标点等与半个高位字符宽...
		   }
		}
		if ($str_length>$cutlength){
		   $returnstr = $returnstr . "...";//超过长度时在尾处加上省略号
		}
		return $returnstr; 
	}
?>

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