An Intro to Using the GD Image Library with PHP - Putting It All Together

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Ok, now let's put all those functions together and create that clock! First we need to get a few variables set so that we have the proper time and all that. Here's a bit of code to do that, how we got this code is beyond the scope of this tutorial.

<?php $time = strftime("%I:%M:%S", time()); $timearray = explode(':',$time); $hour = (((int)$timearray[0]) * 60) + (int)$timearray[1]; $minute = (int)$timearray[1]; $second = (int)$timearray[2]; if($hour != 0) {     $hourdegree = ((360 / (720 / $hour)) - 90) % 360;     if($hourdegree &lt; 0) { $hourdegree = 360 + $hourdegree; } } else {     $hourdegree = 270; } if($minute != 0) {     $minutedegree = ((360 / (60 / $minute)) - 90) % 360;     if($minutedegree &lt; 0) { $minutedegree = 360 + $minutedegree; } } else {     $minutedegree = 270; } if($second != 0) {     $seconddegree = ((360 / (60 / $second)) - 90) % 360;     if($seconddegree &lt; 0) { $seconddegree = 360 + $seconddegree; } } else {     $seconddegree = 270; } ?>

Ok, there might be a more efficient way to get the degrees that we need, but this is the way I decided to do it. Anyway, on with making the image. Let's throw all those functions we saw earlier together and get an image created.

<?php $image = imagecreate(100,100); $maroon = ImageColorAllocate($image,123,9,60); $white = ImageColorAllocate($image,255,255,255); $black = ImageColorAllocate($image,0,0,0); ImageFilledRectangle($image,0,0,99,99,$white); ImageFilledEllipse($image,49,49,100,100,$black); ImageFilledEllipse($image,49,49,95,95,$maroon); ImageFilledEllipse($image,49,49,75,75,$white); ImageFilledEllipse($image,49,49,5,5,$maroon); ImageFilledArc($image,49,49,50,50,$hourdegree-4,$hourdegree+4, $maroon,IMG_ARC_PIE); ImageFilledArc($image,49,49,65,65,$minutedegree-3,$minutedegree+3, $maroon,IMG_ARC_PIE); ImageFilledArc($image,49,49,70,70,$seconddegree-2,$seconddegree+2, $black,IMG_ARC_PIE); ImageColorTransparent($image,$white); ImageTTFText ($image, 8, 0, 44, 11, $white,  "/home/mjw21/www/images/arial.ttf","12"); ImageTTFText ($image, 8, 0, 89, 53, $white,  "/home/mjw21/www/images/arial.ttf","3"); ImageTTFText ($image, 8, 0, 47, 96, $white,  "/home/mjw21/www/images/arial.ttf","6"); ImageTTFText ($image, 8, 0, 5, 53, $white, "/home/mjw21/www/images/arial.ttf","9"); imagePNG($image); imagedestroy($image); ?>

Next: Let's Finish It Up >>
 

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