blocks|key|4466244|text|正如@jirson-tavera在homebrew-php+repo+issue中提出的那样，可以在不覆盖brew安装的情况下修复此问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4466245|wget+-c+http://www.ijg.org/files/jpegsrc.v8d.tar.gz
tar+xzf+jpegsrc.v8d.tar.gz
cd+jpeg-8d
./configure
make
cp+./.libs/libjpeg.8.dylib+/usr/local/opt/jpeg/lib|code-block|syntax|javascript|4466246|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/Homebrew/homebrew-php/issues/4358#issuecomment-320645331^0|H|N|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

As proposed by @jirson-tavera in the <a href="https://github.com/Homebrew/homebrew-php/issues/4358#issuecomment-320645331" rel="noreferrer">homebrew-php repo issue</a>, this can be fixed without overriding your brew installation: 

<pre><code>wget -c http://www.ijg.org/files/jpegsrc.v8d.tar.gz
tar xzf jpegsrc.v8d.tar.gz
cd jpeg-8d
./configure
make
cp ./.libs/libjpeg.8.dylib /usr/local/opt/jpeg/lib
</code></pre>

blocks|key|4465809|text|我也遇到了同样的问题，我通过从here下载libjpeg+tarball手册并运行：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4465810|tar+zxvf+jpegsrc.v6b.tar.gz
cd+jpeg-6b
cp+/usr/share/libtool/config.sub+.
cp+/usr/share/libtool/config.guess+.
./configure+--enable-shared+--enable-static
make
sudo+make+install

sudo+ranlib+/usr/local/lib/libjpeg.a+#Optionally|code-block|syntax|javascript|4465811|entityMap|0|LINK|mutability|MUTABLE|url|http://www.ijg.org/files/^0|F|4|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

I had the same problem and I solved it by downloading the libjpeg tarball manuallu from <a href="http://www.ijg.org/files/" rel="nofollow noreferrer">here</a> and running: 



<pre class="lang-bsh prettyprint-override"><code>tar zxvf jpegsrc.v6b.tar.gz
cd jpeg-6b
cp /usr/share/libtool/config.sub .
cp /usr/share/libtool/config.guess .
./configure --enable-shared --enable-static
make
sudo make install

sudo ranlib /usr/local/lib/libjpeg.a #Optionally
</code></pre>

blocks|key|4466227|text|一个肮脏的解决方案，这对我来说很好。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4466228|ln+-s+/usr/local/lib/libjpeg.9.dylib+/usr/local/lib/libjpeg.8.dylib|code-block|syntax|javascript|4466229|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

A dirty solution, that work fine for me.

<pre><code>ln -s /usr/local/lib/libjpeg.9.dylib /usr/local/lib/libjpeg.8.dylib
</code></pre>

blocks|key|4466148|text|下面的命令对我很有效。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4466149|brew+switch+libjpeg+8d|code-block|syntax|javascript|4466150|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Following command worked for me.

<pre><code>brew switch libjpeg 8d
</code></pre>

blocks|key|4465839|text|我没有尝试Jirson的答案，但对我有效的是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4465840|brew+uninstall+libjpeg
brew+install+libjpeg|code-block|syntax|javascript|4465841|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I didn't try Jirson's answer, but what worked for me was:

<pre><code>brew uninstall libjpeg
brew install libjpeg
</code></pre>

blocks|key|4465960|text|我也遇到了同样的问题，唯一有帮助的是使用--build-from-source参数：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4465961|brew+install+php70+--build-from-source|code-block|syntax|javascript|4465962|entityMap^0|K|J|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

I was having the same problem and the only thing that helped was to use the <code>--build-from-source</code> parameter:

<pre><code>brew install php70 --build-from-source
</code></pre>

blocks|key|4466110|text|我也有这个问题。我是这样解决的:卸载jpeg/8b：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4466111|brew+uninstall+--ignore-dependencies+libjpeg|code-block|syntax|javascript|4466112|卸载jpeg/9b：|4466113|brew+uninstall+--ignore-dependencies+jpeg|4466114|​|4466115|📷|atomic|offset|length|4466116|4466117|重新安装jpeg/9b|4466118|brew+install+jpeg|4466119|4466120|4466121|4466122|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/b48ece41093e63323d47c70ec19b764b.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/149bf9a15b951e239b9abc8eecc5b439.png^0|0|0|0|0|0|0|1|0|0|0|0|0|0|0|1|1|0|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1B|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|1C|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|1D|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|1E|8|@]|9|@]|A|$]]|$1|M|3|N|5|O|7|1F|8|@]|9|@$P|1G|Q|1H|1|1I]]|A|$]]|$1|R|3|L|5|6|7|1J|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1K|8|@]|9|@]|A|$]]|$1|U|3|V|5|D|7|1L|8|@]|9|@]|A|$E|F]]|$1|W|3|L|5|6|7|1M|8|@]|9|@]|A|$]]|$1|X|3|N|5|O|7|1N|8|@]|9|@$P|1O|Q|1P|1|1Q]]|A|$]]|$1|Y|3|L|5|6|7|1R|8|@]|9|@]|A|$]]|$1|Z|3|-4|5|6|7|1S|8|@]|9|@]|A|$]]]|10|$11|$5|12|13|14|A|$15|16|17|-4]]|18|$5|12|13|14|A|$15|19|17|-4]]]]

I had also this problem. I solved it in this way:
Uninstall jpeg/8b:

<pre><code>brew uninstall --ignore-dependencies libjpeg
</code></pre>

Uninstall jpeg/9b:

<pre><code>brew uninstall --ignore-dependencies jpeg
</code></pre>

<a href="https://i.stack.imgur.com/Gmf6m.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Gmf6m.png" alt="Uninstall jpeg/8b and 9b"></a>

Re install jpeg/9b

<pre><code>brew install jpeg
</code></pre>

<a href="https://i.stack.imgur.com/3y2nW.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3y2nW.png" alt="Re-install jpeg/9b"></a>

blocks|key|4466377|text|我分享这一点，因为我在使用PHP5.4时也遇到了同样的问题。最初，我使用的是PHP5.6，它工作得很好。然后我降级到PHP5.4，因为我的应用程序只支持php5.4。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4466378|然后出现了这个错误。我注意到我有libjpeg.9.dylib，而PHP5.4正在寻找libjpeg.8.dylib。|offset|length|style|CODE|4466379|执行以下操作解决了问题：|4466380|brew+uninstall+php54
brew+install+--build-from-source+php54|code-block|syntax|javascript|4466381|entityMap^0|0|G|F|17|F|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@$D|S|E|T|F|G]|$D|U|E|V|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|W|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|X|8|@]|9|@]|A|$M|N]]|$1|O|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|P|$]]

I am sharing this as I had the same issue when using PHP5.4. Originally, I had PHP5.6 and it was working fine. Then I downgraded to php5.4 as my app only supports PHP5.4.

Then this error came up. I noticed that I have <code>libjpeg.9.dylib</code> and PHP5.4 is looking for <code>libjpeg.8.dylib</code>. 

Doing the following sorted the issue: 

<pre><code>brew uninstall php54
brew install --build-from-source php54
</code></pre>

blocks|key|4466350|text|Homebrew+php已更新，不再是libjpeg的问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4466351|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Homebrew php has been updated and no longer an issue with libjpeg

blocks|key|4466505|text|brew+switch+libjpeg+8d|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4466506|使用php7.1的Valet+-+mac|unstyled|4466507|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>brew switch libjpeg 8d
</code></pre>

Valet - mac with php7.1

blocks|key|4466605|text|在某些情况下，尤其是在Catalina中，软件包的自制桶可能存在，但没有正确链接。在这种情况下，请尝试：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4466606|brew+link+libjpeg
brew+reinstall+php+--build-from-source|code-block|syntax|javascript|4466607|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

In some cases, especially in Catalina, the Homebrew cask for the package may exist but not be properly linked. In that case try:

<pre><code>brew link libjpeg
brew reinstall php --build-from-source
</code></pre>

PHP was not working for me as I was encountering <a href="https://stackoverflow.com/questions/32702845/dyld-library-not-loaded-usr-local-lib-libpng-3-dylib-when-using-php">this libpng issue</a>, so I reinstalled a new version with Homebrew. 

However, I'm getting a similar error with <code>libjpeg</code> this time:

<pre><code>$ php -v
dyld: Library not loaded: /usr/local/lib/libjpeg.8.dylib
 Referenced from: /usr/local/bin/php
 Reason: image not found
Trace/BPT trap: 5
</code></pre>

Any suggestions?

dyld: Library not loaded: /usr/local/lib/libjpeg.8.dylib - homebrew php

PHP不适用于我，因为我遇到了，所以我用Homebrew重新安装了一个新版本。但是，这一次我在使用libjpeg时遇到了类似的错误：$ php -vdyld: Library not loaded: /usr/local/lib/libjpeg.8.dylib  Referenced from: /usr/local/bin/php  Reason: image not foundTrace/BP

问dyld:未加载库: /usr/local/lib/libjpeg.8.dylib - homebrew php
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问dyld:未加载库: /usr/local/lib/libjpeg.8.dylib - homebrew phpEN

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