if ($pixel)
{
for($i = 0; $i < 50; $i ++)
{
imagesetpixel ( $image, mt_rand
( 0, $width - 1 ),
mt_rand ( 0, $height - 1 ), $black );
}
}
if ($line)
{
for($i = 1; $i < $line; $i ++)
{
$color = imagecolorallocate
( $image, mt_rand ( 50, 90 ),
mt_rand ( 80, 200 ), mt_rand
( 90, 180 ) );
imageline ( $image, mt_rand
( 0, $width - 1 ),
mt_rand ( 0, $height - 1 ),
mt_rand ( 0,$width - 1 ),
mt_rand ( 0, $height - 1 ),
$color );
}
}
header ( "content-type:image/gif" );
imagegif ( $image );
imagedestroy ( $image );
}
yanzhengma(3,4,50,5);
?>
$strdata = array("最", '好', "的", "编", "程", "语", "言");
for ($i = 0; $i < 4; $i++) {
// $fontsize = 5;
$fontcolor = imagecolorallocate($img, rand(0, 150), rand(0, 150), rand(0, 150));
$fontface = "msyh.ttf";
// $fontcont = substr($data,rand(0,strlen($data)-1),1);
$fontcont = $strdata[array_rand($strdata)];
$captureCode .= $fontcont;
$x = $i * ($w / 4);
$y = rand(0, $h / 4);
imagettftext($img, 20, rand(-30, 30), $x, $y + 30, $fontcolor, $fontface, $fontcont);
// imagestring($img, $fontsize, $x, $y, $fontcont, $fontcolor);
}
$_SESSION['authcode'] = $captureCode;
//增加干扰点
for ($i = 0; $i < 200; $i++) {
$pointcolor = imagecolorallocate($img, rand(50, 200), rand(50, 200), rand(50, 200));
imagesetpixel($img, rand(0, $w), rand(0, $h), $pointcolor);
}
//增加干扰线
for ($i = 0; $i < 3; $i++) {
$linecolor = imagecolorallocate($img, rand(80, 200), rand(80, 200), rand(80, 200));
imageline($img, rand(0, $w), rand(0, $h), rand(0, $w), rand(0, $h), $linecolor);
}
//输出图片
header("Content-type:image/png");
imagepng($img);
imagedestroy($img);
}
yanzhengma(200, 60);
if ($pixel)
{
for($i = 0; $i < 50; $i ++)
{
imagesetpixel ( $image, mt_rand
( 0, $width - 1 ),
mt_rand ( 0, $height - 1 ), $black );
}
}
if ($line)
{
for($i = 1; $i < $line; $i ++)
{
$color = imagecolorallocate
( $image, mt_rand ( 50, 90 ),
mt_rand ( 80, 200 ), mt_rand
( 90, 180 ) );
imageline ( $image, mt_rand
( 0, $width - 1 ),
mt_rand ( 0, $height - 1 ),
mt_rand ( 0,$width - 1 ),
mt_rand ( 0, $height - 1 ),
$color );
}
}
header ( "content-type:image/gif" );
imagegif ( $image );
imagedestroy ( $image );
}
yanzhengma(3,4);
?>