


//Contains a counter, a reminder statement, user IP and its own advertising image.
//Send a header to the browser, saying I am a picture
Header("Content-type: image/PNG");
//Define the counter here and put it in a file
$Visited=array();
if (!file_exists("Counter"))
{
for($i=0;$i$Visited[$i]=0;
$str=$Visited[0];
for ($i=1;$i$str.=",$Visited[$i]";
$fp=fopen("Counter","w");
fputs($fp, $str);
fclose($fp);
}
else
{
$fp=fopen("Counter","r");
$str=trim(fgets($fp,100));
$Visited =explode(",",$str);
fclose($fp);
}
$Visited[date("G")]=intval($Visited[date("G")])+1;
$ str=$Visited[0];
$max=intval($Visited[0]);
for($i=1;$i{
$str.=",$Visited[$ i]";
if($max$max=intval($Visited[$i]);
}
$fp=fopen("Counter","w" );
fputs($fp,$str);
fclose($fp);
$sum=0;
for($i=0;$i{
$sum+=$Visited[ $i];
}
//Counter ends
//Start creating image to define color, font, etc.
$im = imagecreate(400,100);
$black = ImageColorAllocate($im, 0,0,0);
$white = ImageColorAllocate($im, 255,255,255);
$red = ImageColorAllocate($im, 255,0,0);
$blue = ImageColorAllocate($im, 0,0,255);
$f
$maginx=20;
$maginy =20;
//Define ip and host name, of course the user’s
$ip = getenv('REMOTE_ADDR');
$host = gethostbyaddr($ip);
$today = getdate();
$wday = $ today['wday'];
//Reminder fragment, if it is the weekend, it is better to remind class if it is not the weekend.
if($wday==6 || $wday==0){
$tips = "enjoy the wonderful weekend!" ;
}else{
$tips = "you'd better go to school.";
}
if($wday ==1){
$wday = "Monday";
} elseif ($wday==2) {
$wday="Tuesday";
} elseif ($wday==3){
$wday="Wednsday";
} elseif ($wday==4){
$wday="Thursday";
} elseif ($wday==5){
$wday="Friday";
} elseif ($wday==6){
$wday="Saturday";
} elseif ($wday==0){
$wday= "Sunday";
}
//Start creating the image background border
imagefill($im,0,0,$black);
imagefilledrectangle ($im, 1, 1, 398, 98, $white);
//Definition Brush
$style = array ($white,$white,$white,$white,$white,$white,$white,$white,$white,$red);
imagesetstyle ($im, $style);
/ /If there is a motion effect, use a brush to brush it, which is equivalent to the brush tool in photoshop
//ads is my own advertising image
$brush = imagecreatefrompng ("http://172.24.16.80/testpic/smile1. png");
$brush1 = imagecreatefrompng ("http://172.24.16.80/testpic/ads.png");
$w2 = imagecolorallocate($brush,255,255,255);
imagecolortransparent ($brush, $w2);
imagesetbrush ($im, $brush);
imageline ($im, 350,20,360,20, IMG_COLOR_STYLEDBRUSHED);
imagecopy ($im, $brush1, 270, 40, 0, 0, 119, 48);
//Definition Output text
imagestring($im,$font,$maginx,$maginy+20,"Your computer's named:{$host}",$red);
imagestring($im,$font,$maginx,$maginy," Your IP Address is:{$ip}",$red);
imagestring($im,2,2,2,"Today is {$wday} and {$tips}",$blue);
imagestring($im ,3,10,$maginy+40,"TotalRefreshTimesFromToday:$sum",$blue);
//Necessary statement at the end of the picture
ImagePNG($im);
ImageDestroy($im);
?>
The above has introduced the principle of dynamically displaying signatures and IPs in PHP, including nvidia control panel not displaying, including the nvidia control panel not displaying. I hope it will be helpful to friends who are interested in PHP tutorials.

ThebestapproachforsendingemailsinPHPisusingthePHPMailerlibraryduetoitsreliability,featurerichness,andeaseofuse.PHPMailersupportsSMTP,providesdetailederrorhandling,allowssendingHTMLandplaintextemails,supportsattachments,andenhancessecurity.Foroptimalu

The reason for using Dependency Injection (DI) is that it promotes loose coupling, testability, and maintainability of the code. 1) Use constructor to inject dependencies, 2) Avoid using service locators, 3) Use dependency injection containers to manage dependencies, 4) Improve testability through injecting dependencies, 5) Avoid over-injection dependencies, 6) Consider the impact of DI on performance.

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PHP performance optimization can be achieved through the following steps: 1) use require_once or include_once on the top of the script to reduce the number of file loads; 2) use preprocessing statements and batch processing to reduce the number of database queries; 3) configure OPcache for opcode cache; 4) enable and configure PHP-FPM optimization process management; 5) use CDN to distribute static resources; 6) use Xdebug or Blackfire for code performance analysis; 7) select efficient data structures such as arrays; 8) write modular code for optimization execution.

OpcodecachingsignificantlyimprovesPHPperformancebycachingcompiledcode,reducingserverloadandresponsetimes.1)ItstorescompiledPHPcodeinmemory,bypassingparsingandcompiling.2)UseOPcachebysettingparametersinphp.ini,likememoryconsumptionandscriptlimits.3)Ad


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