上一篇：php date函数获取上个月开始时间的注意事项(2025-07-31 12:21:37)
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Call to undefined function imagecreatefromjpeg()问题解决

2025-12-12 19:32:11

问题描述

最近网站上传图片，不知道为啥又出现这个错误，导致图片不能上传成功：

txt
Call to undefined function imagecreatefromjpeg()

检查phpinfo里gd模块，确实发现没有jpeg support：


补装jpeg支持

bash
cd /php_source/ext/gd
phpize
./configure --with-jpeg --with-freetype --with-png

进入php源码gd目录，编译却一直报错：

txt
./configure: line 4124: `  PKG_CHECK_MODULES(ZLIB, zlib)


怎么有多个phpize？

查看所有可用的phpize：

bash
find /usr -name "phpize*" -type f 2>/dev/null

发现有多个phpize：


前面执行的phpize命令，显示如下：

txt
Configuring for:
PHP Api Version:         20170718
Zend Module Api No:      20170718
Zend Extension Api No:   320170718

跟phpinfo展示的版本号不一致：



但当我执行如下phpize时（记得phpize --clean清除历史记录）：

bash
/usr/local/php/bin/phpize

结果显示就与上图一致了：

txt
Configuring for:
PHP Api Version:         20190902
Zend Module Api No:      20190902
Zend Extension Api No:   320190902

再进行如下编译：

bash
./configure --with-jpeg --with-freetype
make && make install

就成功了：

txt
Libraries have been installed in:
   /opt/software/php-7.4.8/ext/gd/modules

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the `LD_LIBRARY_PATH' environment variable
     during execution
   - add LIBDIR to the `LD_RUN_PATH' environment variable
     during linking
   - use the `-Wl,--rpath -Wl,LIBDIR' linker flag
   - have your system administrator add LIBDIR to `/etc/ld.so.conf'

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------

Build complete.
Don't forget to run 'make test'.

Installing shared extensions:     /usr/lib64/php/modules/
Installing header files:          /usr/include/php/


gd JPEG安装失败

通过如下运行php代码的命令查看gd信息：

bash
php -r "print_r(gd_info());"

执行结果如下：

txt
Array
(
    [GD Version] => bundled (2.1.0 compatible)
    [FreeType Support] => 1
    [FreeType Linkage] => with freetype
    [GIF Read Support] => 1
    [GIF Create Support] => 1
    [JPEG Support] => 
    [PNG Support] => 1
    [WBMP Support] => 1
    [XPM Support] => 
    [XBM Support] => 1
    [WebP Support] => 
    [BMP Support] => 1
    [TGA Read Support] => 1
    [JIS-mapped Japanese Font Support] => 
)

看来JPEG支持还是没安装成功。


最终解决

最终正确编译命令如下：

bash
/usr/local/php/bin/phpize
./configure --with-php-config=/usr/local/php/bin/php-config --with-jpeg --with-freetype --with-webp --with-xpm

前面尝试过程中，到最后重启php-fpm时，总是失败，报各种错误：

  1. undefined symbol: gdImageCreateFromWebp
  2. undefined symbol: gdImageCreateFromXpm
  3. undefined symbol: executor_globals

分别把Webp和Xpm加上后，最后一个错误估计就是没指定php-config导致默认用的php-config版本不对。

编译成功后，显示如下：

txt
Libraries have been installed in:
   /opt/software/php-7.4.8/ext/gd/modules

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the `LD_LIBRARY_PATH' environment variable
     during execution
   - add LIBDIR to the `LD_RUN_PATH' environment variable
     during linking
   - use the `-Wl,--rpath -Wl,LIBDIR' linker flag
   - have your system administrator add LIBDIR to `/etc/ld.so.conf'

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------

Build complete.
Don't forget to run 'make test'.

Installing shared extensions:     /usr/local/php/lib/php/extensions/no-debug-zts-20190902/
Installing header files:          /usr/local/php/include/php/

和上一次执行的结果，不同之处就是：Installing shared extensions后面目录不一样。


对照phpinfo里的extension_dir参数：


可知：

编译正确时，扩展so文件会自动在phpinfo里展示的extension_dir里，无须人工拷贝

目录不一致，就说明phpize或php-config版本信息不对。


成功后的gd模块信息

txt
-bash-4.4# php -r "print_r(gd_info());"
Array
(
    [GD Version] => bundled (2.1.0 compatible)
    [FreeType Support] => 1
    [FreeType Linkage] => with freetype
    [GIF Read Support] => 1
    [GIF Create Support] => 1
    [JPEG Support] => 1
    [PNG Support] => 1
    [WBMP Support] => 1
    [XPM Support] => 1
    [XBM Support] => 1
    [WebP Support] => 1
    [BMP Support] => 1
    [TGA Read Support] => 1
    [JIS-mapped Japanese Font Support] => 
)




上一篇：php date函数获取上个月开始时间的注意事项(2025-07-31 12:21:37)
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