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| <?php
function letter($fontSize = 5) {
$tinyLetter = array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z');
$capLetter = array('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z');
$nbLetter = 6;
$string = '';
for ($i = 0; $i < $nbLetter; $i++) {
$letterStyle = rand (0, 1);
$letterStyle = $letterStyle ? $tinyLetter : $capLetter;
$nb = rand(0, 23);
if (!empty($string)) {
$string = $string.' '.$letterStyle[$nb];
} else {
$string = $letterStyle[$nb];
}
}
$fontWidth = array(1 => 5,
2 => 6,
3 => 7,
4 => 8,
5 => 9,
);
$fontHeight = array(1 => 7,
2 => 9,
3 => 14,
4 => 16,
5 => 16,
);
$imgWidth = $fontWidth[$fontSize] * strlen($string);
$imgHeight = $fontHeight[$fontSize];
$img = @imagecreatetruecolor($imgWidth, $imgHeight) or die('GD is inactive.');
$bgColor = imagecolorallocate($img, 255, 255, 255);
$textColor = imagecolorallocate($img, 0, 0, 0);
imagefilledrectangle($img, 0, 0, $imgWidth, $imgHeight, $bgColor);
imagestring($img, $fontSize, 0, 0, $string, $textColor);
header('Content-Type: image/png');
imagepng($img);
imagedestroy($img);
}
letter();
?> |
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