Untitled

<?php

header("Content-type: image/png");

$sizex=800;

$sizey=800;

$img = imagecreatetruecolor(3 * $sizex,$sizey);

$r = imagecolorallocate($img,255, 0, 0);

$g = imagecolorallocate($img,0, 255, 0);

$b = imagecolorallocate($img,0, 0, 255);

imagefilledrectangle($img, 0, 0, 3 * $sizex, $sizey, imagecolorallocate($img, 255, 255, 255));

$p = 0;

for($i=0; $i < 100000; $i++) {

$np = rand(0,$sizex);

imagesetpixel($img, $p, $np, $r);

$p = $np;

}

$p = 0;

for($i=0; $i < 100000; $i++) {

$np = mt_rand(0,$sizex);

imagesetpixel($img, $p + $sizex, $np, $g);

$p = $np;

}

$p = 0;

for($i=0; $i < 100000; $i++) {

$np = floor($sizex*(hexdec(bin2hex(openssl_random_pseudo_bytes(4)))/0xffffffff));

imagesetpixel($img, $p + (2*$sizex), $np, $b);

$p = $np;

}

imagepng($img);

imagedestroy($img);

?>

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