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Thursday, 02 February 2012 23:54 |
// Simple PHP Math Image Captcha
// captcha width
$captcha_w = 150;
// captcha height
$captcha_h = 50;
// minimum font size; each operation element changes size
$min_font_size = 12;
// maximum font size
$max_font_size = 18;
// rotation angle
$angle = 20;
// background grid size
$bg_size = 13;
// path to font - needed to display the operation elements
$font_path = 'fonts/courbd.ttf';
// array of possible operators
$operators=array('+','-','*');
// first number random value; keep it lower than $second_num
$first_num = rand(1,5);
// second number random value
$second_num = rand(6,11);
?>
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