PHP logs visitors ' information and generates pictures

PHP Records visitors ' information and generates pictures, as shown below.

The code is as follows, this article only wrote some elementary things, the need of friends can be modified according to their own situation.

<?php//function: Visit information generate picture function Getbrowse () {//log visitor's browser information global $_server;
	$Agent =$_server["Http_user_agent"];
	$browseinfo = "";
	if (Ereg ("Mozilla", $Agent) &&!ereg ("MSIE", $Agent)) {$browseinfo = "Netscape Navigator";
	} if (Ereg ("opera", $Agent)) {$browseinfo = "opera";
	} if (Ereg ("Mozilla", $Agent) &&ereg ("MSIE", $Agent)) {$browseinfo = "Internet Explorer";
	} if (Ereg ("Chrome", $Agent)) {$browseinfo = "chrome";
	} if (Ereg ("Firefox", $Agent)) {$browseinfo = "Firefox";
return $browseinfo;
	function GetIP () {//log visitor's IP information global $_server;
	if (getenv ("Http_client_ip")) {$ip =getenv ("http_client_ip");
	}else if (getenv ("Http_x_forwarded_for")) {$ip =getenv ("http_x_forwarded_for");
	}else if (getenv ("REMOTE_ADDR")) {$ip =getenv ("remote_addr");
	}else{$ip =$_server["REMOTE_ADDR"];
return $IP;
	The function Getos () {//records the visitor's system information global $_server;
	$agent =$_server["Http_user_agent"];
	$os =false;
	if (Eregi ("Win", $agent) &&strpos ($agent, "a")) {$os = "Windows 95"; }eLSE if (EREGI ("Win 9x", $agent) &&strpos ($agent, "4.90")) {$os = "Windows ME";
	}else if ("Win", $agent) &&ereg ("Eregi", $agent)) {$os = "Windows 98";
	}else if (eregi ("Win", $agent) &&eregi ("NT 5.1", $agent)) {$os = "Windows XP";
	}else if (eregi ("Win", $agent) &&eregi ("NT 5.2", $agent)) {$os = "Windows 2003";
	}else if (eregi ("Win", $agent) &&eregi ("NT 5", $agent)) {$os = "Windows 2000";
	}else if (eregi ("Win", $agent) &&eregi ("NT", $agent)) {$os = "Windows nt";
	}else if (eregi ("Win", $agent) &&ereg ("A", $agent)) {$os = "Windows 32";
	}else if (eregi ("Linux", $agent)) {$os = "Linux";
	}else if (eregi ("Unix", $agent)) {$os = "Unix";
	}else if (Eregi ("Sun", $agent) &&eregi ("OS", $agent)) {$os = "SunOS";
	}else if (eregi ("IBM", $agent) &&eregi ("OS", $agent)) {$os = "IBM OS/2";
	}else if (eregi ("Mac", $agent) &&eregi ("PC", $agent)) {$os = "Macintosh";
	}else if (eregi ("PowerPC", $agent)) {$os = "PowerPC"; }else if (eregi ("Aix", $agent)) {$os = "Aix";
	}else if (eregi ("HPUX", $agent)) {$os = "HPUX";
	}else if (eregi ("NetBSD", $agent)) {$os = "NetBSD";
	}else if (eregi ("BSD", $agent)) {$os = "BSD";
	}else if (ereg ("OSF1", $agent)) {$os = "OSF1";
	}else if (ereg ("IRIX", $agent)) {$os = "IRIX";
	}else if (eregi ("FreeBSD", $agent)) {$os = "FreeBSD";
	}else if (eregi ("Teleport", $agent)) {$os = "teleport";
	}else if (eregi ("FlashGet", $agent)) {$os = "flashget";
	}else if (eregi ("Webzip", $agent)) {$os = "webzip";
	}else if (eregi ("Offline", $agent)) {$os = "offline";
	}else{$os = "Unknown";
return $os;
} $ob =getbrowse ();
$os = Getos ();
$ip =getip ();
$str = "IP:". $ip;
$str 2= "OS:". $os;
$str 3= $ob;
$str 4= "from:www.Alixixi.com";
$width the width of the =250;//verification code picture $height the height of the =110;//Verification Code picture @header ("content-type:image/png");
$im =imagecreate ($width, $height);
Background color $back =imagecolorallocate ($im, 0xff,0xff,0xff);
Fuzzy point color $pix =imagecolorallocate ($im, 187,230,247);
Font Color $font =imagecolorallocate ($im, 41,163,238);
A point Mt_srand () that paints a blur action; For ($i =0 $i <1000; $i + +) {Imagesetpixel ($Im,mt_rand (0, $width), Mt_rand (0, $height), $pix);
Imagestring ($im, 5,7,5, $str, $font);
Imagestring ($im, 5,7,30, $str 2, $font);
Imagestring ($im, 5,7,55, $str 3, $font);
Imagestring ($im, 5,7,80, $str 4, $font);
Imagerectangle ($im, 0,0, $width-1, $height-1, $font);
Imagepng ($im); Imagedestroy ($im);

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