Question

以下php提示是什么意思，我用GD2函数在图片中写中文 为什么老是不行呀

这是本来的php
<?php
header("content-type:image/jpeg"); //定义输出为图像类型
$im=imagecreatefromjpeg("images/2.jpg"); //载入照片
$textcolor=imagecolorallocate($im,56,73,136);//设置字体颜色为蓝色，值为RGB颜色值
$fnt="c:/windows/fonts/simsunb.ttf"; //定义字体
$motto=iconv("gb2312","utf-8","长白山天池"); //定义输出字体串
imagettftext($im,220,0,480,340,$textcolor,$fnt,$motto); //写TTF文字到图中
imagejpeg($im); //建立JPEG图形
imagedestroy($im); //结束图形，释放内存空间
?>
这是运行的结果
<br />
<b>Warning</b>: imagecreatefromjpeg(images/2.jpg) [<a href='function.imagecreatefromjpeg'>function.imagecreatefromjpeg</a>]: failed to open stream: No such file or directory in <b>D:\AppServ\www\xxx\d12j\2\6.php</b> on line <b>3</b><br />
<br />
<b>Warning</b>: imagecolorallocate(): supplied argument is not a valid Image resource in <b>D:\AppServ\www\xxx\d12j\2\6.php</b> on line <b>4</b><br />
<br />
<b>Warning</b>: imagettftext() expects parameter 1 to be resource, boolean given in <b>D:\AppServ\www\xxx\d12j\2\6.php</b> on line <b>7</b><br />
<br />
<b>Warning</b>: imagejpeg(): supplied argument is not a valid Image resource in <b>D:\AppServ\www\xxx\d12j\2\6.php</b> on line <b>8</b><br />
<br />
<b>Warning</b>: imagedestroy(): supplied argument is not a valid Image resource in <b>D:\AppServ\www\xxx\d12j\2\6.php</b> on line <b>9</b><br />

Answer 1

图片太大了，超出内存限制了，可在前面加ini_set('memory_limit',80M);

追问

在那里的前面加呀

Answer 2

"images/2.jpg" 这个文件不存在
确保你的 php 页面所在路径下有 images/2.jpg 这个文件

追问

我把它改好了，但它提示这个

Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 10240 bytes) in D:\AppServ\www\xxx\d12j\2\6.php on line 3

追答

内存超出限制
在php页面第一行写上 @ini_set( 'memory_limit', '256M' );

追问

我换了个几十kb的空白图片，但它显示
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 9072 bytes) in D:\AppServ\www\xxx\d12j\2\6.php on line 3

Answer 3

$im=imagecreatefromjpeg("images/2.jpg");检查路径

追问

我把它改好了，但它提示

Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 10240 bytes) in D:\AppServ\www\xxx\d12j\2\6.php on line 3

追答

图片太大了

追问

我换了个几十kb的空白图片，但它显示
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 9072 bytes) in D:\AppServ\www\xxx\d12j\2\6.php on line 3

追答

在php.ini中修改memory_limit=16M(默认的是8),重启服务器

追问

修改了，重启了，但还是不行，它还是显示Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 9072 bytes) in D:\AppServ\www\xxx\d12j\2\6.php on line 3

Answer 4

在header前面加

追问

加了，还是不行，
我换了个几十kb的空白图片，但它显示
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 9072 bytes) in D:\AppServ\www\xxx\d12j\2\6.php on line 3