48 lines
870 B
PHP
48 lines
870 B
PHP
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<?php
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header("Content-type: image/jpeg");
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session_start();
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// image config
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$code = rand(1000,9999);
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$color_r = rand(50, 170);
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$color_g = rand(50, 170);
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$color_b = rand(170, 250);
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$_SESSION["captcha_code"] = $code;
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$bg_image = "blank.jpg";
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$font = "./maturasc.ttf";
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$size = 26;
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$rotation = rand(-5,10);
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$pad_x = 10;
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$pad_y = 35;
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// generate image
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$img_path = $bg_image;
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$img_size = getimagesize($img_path);
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$width = $img_size[0];
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$height = $img_size[1];
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$img = ImageCreateFromJpeg($img_path);
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$fg = ImageColorAllocate($img, $color_r, $color_g, $color_b);
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ImageTTFText($img, $size, $rotation, $pad_x, $pad_y, $fg, $font, $code);
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$dots = $width*$height/2;
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for($i=0;$i<$dots;$i++)
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{
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$dc = ImageColorAllocate($img, $color_r, $color_g, $color_b);
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ImageSetPixel($img, rand(0,$width), rand(0,$height), $dc);
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}
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imagejpeg($img);
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?>
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