php Fatal error: Call to undefined function imagecreatefromjpeg()
imagecreatefromjpeg函数是一个图像处理函数,但在使用中发现Fatal error: Call to undefined function imagecreatefromjpeg()错误了,下文小编整理了一些教程,大家一起来看看吧.
代码如下:
if(!imagecreatefromjpeg("./testimg.jpg"))
{
echo "imagecreatefromjpeg(testimg.jpg) failed!n)";
}
else
{
echo "imagecreatefromjpeg(testimg.jpg) succn)";
}如果你使用此函数提示php Fatal error: Call to undefined function imagecreatefromjpeg()
这个错误是因为没有安装gd 的jpeg,虽然你用phpinfo 查看有gd但 gd 不支持 jpeg,安装前我的phpinfo 如下:
gd GD Support enabled GD Version bundled (2.0.34 compatible) FreeType Support enabled FreeType Linkage with freetype FreeType Version 2.2.1 GIF Read Support enabled GIF Create Support enabled PNG Support enabled libPNG Version 1.2.10 WBMP Support enabled XBM Support enabled
显然gd 没有支持jpeg 的,下面要安装 gd中的 jpeg,代码如下:
1、找到php 源码目录
2、进入 ext/gd 目录
3、/usr/local/php/bin/phpize
4、./configure –with-php-config=/usr/local/php/bin/php-config –with-jpeg-dir –with-freetype-dir
5、make && make install
6、重启 httpd
安装后查看phpinfo
gd GD Support enabled GD Version bundled (2.0.34 compatible) FreeType Support enabled FreeType Linkage with freetype FreeType Version 2.2.1 GIF Read Support enabled GIF Create Support enabled JPEG Support enabled libJPEG Version 6b PNG Support enabled libPNG Version 1.2.10 WBMP Support enabled XBM Support enabled
很显然多了个 JPEG Support enabled
以windows下的php+apache:
首先,打开php.ini,找到"extension=php_gd.dll",然后去掉前面的";"注释,重启apache即可.
如果还出现此类问题,先检查php.ini的extension_dir值是哪个目录,在那个目录下检查有无php_gd.dll,没有的话请下载php_curl.dll,再把php目录中的libeay32.dll和ssleay32.dll拷到c:windowssystem32里面,重启apache,OK！
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