Question

我正在尝试使用以下代码上传和重新调整amazon linux服务器上的图像大小。
它在我的本地系统中运行良好。但不是在服务器上。我收到服务器错误500。
仅在此行if(!imagecopyresized($new_image, $old_image, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height)){return false;}

我已经完成了大量的解决方案，没有任何选择，是否有任何选择或替代解决方案？

function makeThumbnails($updir, $img, $id, $name, $extension, $MaxWe = 150, $MaxHe = 150) {
    ini_set ( "memory_limit", "48M");
    $arr_image_details = getimagesize($img);

    $width = $arr_image_details[0];
    $height = $arr_image_details[1];
    $percent = 100;
    if ($width > $MaxWe)
        $percent = floor(($MaxWe * 100) / $width);

    if (floor(($height * $percent) / 100) > $MaxHe)
        $percent = (($MaxHe * 100) / $height);

    if ($width > $height) {
        $newWidth = $MaxWe;
        $newHeight = round(($height * $percent) / 100);
    } else {
        $newWidth = round(($width * $percent) / 100);
        $newHeight = $MaxHe;
    }

    if ($arr_image_details[2] == 1) {
        $imgt = "ImageGIF";
        $imgcreatefrom = "ImageCreateFromGIF";
    }
    if ($arr_image_details[2] == 2) {
        $imgt = "ImageJPEG";
        $imgcreatefrom = "ImageCreateFromJPEG";
    }
    if ($arr_image_details[2] == 3) {
        $imgt = "ImagePNG";
        $imgcreatefrom = "ImageCreateFromPNG";
    }
    if ($imgt) {
        $old_image = $imgcreatefrom($img);
        $new_image = imagecreatetruecolor($newWidth, $newHeight);

        if ($arr_image_details[2] == 3) {
            imagealphablending($new_image, false);
            imagesavealpha($new_image, true);
        }
        if(!imagecopyresized($new_image, $old_image, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height)){
            return false;
        }
        $imgt($new_image, $updir . "" . $name);
        return true;
  }

}

Answer 1

看到你的失败后。我猜它没有用libjpeg编译。对于ImageCreateFromJPEG，您需要gd和libjpeb。确保使用--with-jpeg-dir运行configure。您可能需要搜索它。我使用了命令find / -name libjpeg *并获得了CentOS5的/ usr / lib。

PHP的完整编译如下：

wget http://us1.php.net/distributions/php-5.5.10.tar.gz -O php.tar.gz
tar -xvf php.tar.gz
cd php-5.5.10
yum -y install libxml2-devel libmcrypt-devel libpng-devel
./configure --with-config-file-path=/etc --with-config-file-scan-dir=/etc/php.d  --with-apxs2 --with-mysql --with-mysqli --with-zlib --with-curl --with-libdir=lib --with-openssl --with-pdo-mysql --with-mcrypt  --with-pcre-regex --enable-zip --with-gd --enable-mbstring --with-jpeg-dir=/usr/lib
make clean
make
make install

Answer 2

为php安装GD库

sudo yum install php55-gd

无法在amazon ec2 linux服务器

2 个答案: