<?php
// Set the content-type
header("Content-type: image/jpeg");
// Create the image
$im = imagecreatetruecolor(400, 300);
// Create some colors
$white = imagecolorallocate($im, 255, 255, 255);
$grey = imagecolorallocate($im, 128, 128, 128);
imagefilledrectangle($im, 0, 0, 399, 299, $white);
// The text to draw
$a=array('是','个','大','帅','哥','的','家','吕','朴','作','者');
$tmp=array_rand($a,4);
$text =$a[$tmp[0]].$a[$tmp[1]].$a[$tmp[2]].$a[$tmp[3]];// '中文';
// Replace path by your own font path
$font = 'simhei.ttf';
//$text=iconv('gb2312','utf-8','面对对象');
// Add some shadow to the text
imagettftext($im, 20, 30, 21, 200, $grey ,$font,$a[$tmp[0]]);
imagettftext($im, 20, -30, 61, 200, $grey,$font, $a[$tmp[1]]);
imagettftext($im, 20, 30, 101, 200, $grey, $font,$a[$tmp[2]]);
imagettftext($im, 20, -30, 141, 200, $grey, $font,$a[$tmp[3]]);
// Using imagepng() results in clearer text compared with imagejpeg()
imagejpeg($im);
imagedestroy($im);
?>