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CentOS：致命错误：调用未定义的函数 exif_imagetype()

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CentOS：致命错误：调用未定义的函数 exif_imagetype()

在 CentOS 7.1 上，我遇到以下错误：

Fatal error: Call to undefined function exif_imagetype() in /some/path/to/a/php.file.php on line XXX

我可以在/usr/local/lib/php.ini以下行中启用此功能：

870  ;extension=php_mbstring.dll
871  ;extension=php_exif.dll   ; Must be after mbstring as it depends on it

但在我的系统上找不到 exif 库！find / -name exif没有找到任何东西。

当我这样做时yum search，我得到以下包：

libexif-devel.i686 : Files needed for libexif application development
libexif-devel.x86_64 : Files needed for libexif application development
libexif-doc.x86_64 : The EXIF Library API documentation
exiv2.x86_64 : Exif and Iptc metadata manipulation library
exiv2-libs.i686 : Exif and Iptc metadata manipulation library
exiv2-libs.x86_64 : Exif and Iptc metadata manipulation library
libexif.i686 : Library for extracting extra information from image files
libexif.x86_64 : Library for extracting extra information from image files

我的问题是，如果我删除;、 将 、 重命名php_exif.dll为php_mbstring.dll/ php_mbstring.so，php_exif.so我会摆脱这个错误，还是需要安装其中一个软件包？

我对这个软件不熟悉！

答案1

如果你运行：

$ yum provides php-exif
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: repo.bigstepcloud.com
 * epel: ftp.heanet.ie
 * extras: mirror.sov.uk.goscomb.net
 * updates: centos.serverspace.co.uk
php-common-5.4.16-36.el7_1.x86_64 : Common files for PHP
Repo        : base
Matched from:
Provides    : php-exif



php-common-5.4.16-36.el7_1.x86_64 : Common files for PHP
Repo        : @base
Matched from:
Provides    : php-exif

你会看到这php-exif是包的一部分php-common。如果您已安装，php那么php-common将作为依赖项安装。

因此，您应该可以删除分号。

答案2

这是一个足够简单的修复，我阅读并尝试了建议的内容，但它对我的情况不起作用。我所做的只是这样

Yum search exif

结果

*Loaded plugins: fastestmirror, universal-hooks
Loading mirror speeds from cached hostfile
 * EA4: 
 * cpanel-addons-production-feed: 
 * cpanel-plugins: 
 * base: centos4.zswap.net
 * epel: mirror.team-cymru.com
 * extras: centos4.zswap.net
 * updates: centos4.zswap.net

================================================ N/S matched: exif ================================================

libexif-devel.i686 : Files needed for libexif application development
libexif-devel.x86_64 : Files needed for libexif application development
libexif-doc.x86_64 : The EXIF Library API documentation
ea-php54-php-exif.x86_64 : A module for PHP applications that need to work with image metadata
ea-php55-php-exif.x86_64 : A module for PHP applications that need to work with image metadata
ea-php56-php-exif.x86_64 : A module for PHP applications that need to work with image metadata
ea-php70-php-exif.x86_64 : A module for PHP applications that need to work with image metadata
ea-php71-php-exif.x86_64 : A module for PHP applications that need to work with image metadata
ea-php72-php-exif.x86_64 : A module for PHP applications that need to work with image metadata
ea-php73-php-exif.x86_64 : A module for PHP applications that need to work with image metadata
exiv2.x86_64 : Exif and Iptc metadata manipulation library
exiv2-libs.i686 : Exif and Iptc metadata manipulation library
exiv2-libs.x86_64 : Exif and Iptc metadata manipulation library
jhead.x86_64 : Tool for displaying EXIF data embedded in JPEG images
libexif.i686 : Library for extracting extra information from image files
libexif.x86_64 : Library for extracting extra information from image files
metadata-extractor2.noarch : Extracts EXIF, IPTC, XMP, ICC and other metadata from image files
nodejs-duplexify.noarch : Turn a writeable and readable stream into a single streams2 duplex stream
perl-Image-ExifTool.noarch : Utility for reading and writing image meta info
renrot.noarch : A program to rename and rotate files according to EXIF tags*

下一个

yum install ea-php73-php-exif.x86_64 -y

就是这样。

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