Simple Image Counter

counter.php

<?php

// sample: <img src="counter.php?counter=total_visits">

function hex2rgb($color){
	$color = str_replace('#', '', $color);
	if (strlen($color) != 6){ return array(0,0,0); }
	$rgb = array();
	for ($x=0;$x<3;$x++){
		$rgb[$x] = hexdec(substr($color,(2*$x),2));
	}
	return $rgb;
}


// get params
$ref     = isset($_GET['ref']) ? $_GET['ref'] : NULL;
$counter = isset($_GET['counter']) ? $_GET['counter'] : NULL;
$bg      = isset($_GET['bg']) ? $_GET['bg'] : NULL;

// create file
if (isset($_GET['create'])) {
	touch('counters/'. $counter .'.txt');
}

// content
if( $counter ){
	$file = 'counters/'. $counter .'.txt';
	if( file_exists($file) ){
		$counter = file_get_contents($file);
		$counter += 1;
		// writing
		file_put_contents($file, $counter);
		// result
		$text = $counter;
	}else{
		$text = 'N/A';
	}
}else{
	$text = 'N/A';
}

// bg color
if( $bg ){
	$bg = hex2rgb($bg);
}else{
	$bg = explode(',', '255,255,255');
}

// params
$width    = 100;
$height   = 20;
$font     = 'DaxMedium.ttf';
$fontSize = "10";


// creating image
$image   = imagecreatetruecolor($width, $height);
$bgcolor = imagecolorallocate($image, $bg[0], $bg[1], $bg[2]);
$black   = imagecolorallocate($image, 0, 0, 0);
// background color
imagefilledrectangle($image, 0, 0, $width, $height, $bgcolor);


// writing text
ImageTTFText($image, $fontSize, 0, 0, 15, $black, $font, $text);


// display image
header("Content-Type: image/PNG");
ImagePng ($image);
imagedestroy($image);