西兰花伟大炮
2017-02-17 20:34
<?php $width = 200; $height = 50; $image = imagecreatetruecolor($width,$height); $white = imagecolorallocate($image,255,255,255); $rand_color = imagecolorallocate($image,mt_rand(60,125),mt_rand(60,125),mt_rand(60,125)); imagefilledrectangle($image,0,0,$width,$height,$white); $string = join('',array_merge(range(0,9),range('a','z'),range('A','Z'))); $number = 4; for($i = 0;$i < $number;$i++){ $angle = mt_rand(-15,15); $fontsize = mt_rand(24,28); $text = str_shuffle($string)[0]; $x = 20 + 40 * $i; $y = 35; imagettftext($image,$fontsize,$angle,$x,$y,$rand_color,'msyh.ttc',$text); } header('content-type:image/png'); imagepng($image); imagedestroy($image); ?>
嗯嗯,谢谢楼主
显示一片黑的情况可以在header前加一句ob_clean();是用于清除缓冲区的,我从别的地方看到的,具体原因未知。
<?php
$width=400;
$height=50;
$image=imagecreatetruecolor($width,$height);
$white=imagecolorallocate($image,255,255,255);
$randColor=imagecolorallocate($image,mt_rand(0,255),mt_rand(0,255),mt_rand(0,255));
imagefilledrectangle($image,0,0,$width,$height,$white);
$num = 4;
for($i = 0;$i<$num;$i++){
$size=mt_rand(20,28);
$angle=mt_rand(-15,15);
$x=20 + 40*$i;
$y=30;
$text=mt_rand(1000,9999);
imagettftext($image,$size,$angle,$x,$y,$randColor,'SIMYOU.ttf',$text);
}
header('content-type:image/png');
imagepng($iamge);
imagedestroy($image);
?>
能帮忙看一下吗,我的代码也是显示不出来
<?php $width = 200; $height = 40; $img = imagecreatetruecolor($width, $height); $col = imagecolorallocate($img, mt_rand(200, 255),mt_rand(200, 255),mt_rand(200, 255)); $randCol = imagecolorallocate($img, mt_rand(10, 100), mt_rand(10, 100), mt_rand(10, 100)); $string = join('', array_merge(range(0,9), range('a','z'), range('A','Z'))); imagefilledrectangle($img, 0, 0, $width, $height, $col); $length = 4; for($i < 0; $i < $length; $i++){ $size = mt_rand(20, 28); $angle = mt_rand(-15, 15); $x = 20+40*$i; $y = 30; $fontFile = 'GARTON.TTF'; $text = str_shuffle($string)[0]; imagettftext($img, $size, $angle, $x, $y, $randCol, $fontFile, $text); } header('content-type:image/png'); imagepng($img); imagedestroy($img); ?>
您帮我看看,这个和你的代码有什么不一样吗?我这个运行出来是一片黑的……
PHP进阶篇-GD库图像处理
10431 学习 · 69 问题
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