Centos7下PHP安装gd库的实例讲解

咏远莈侑蔠嚸 發表於 2023-6-3 00:00:00

<p>
Centos7下安装php, 或php的gd库支持，都是很简单的。</p>
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一切通过yum搞定。</p>
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<code class="xhtml plain">yum install php-gd</code>
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<span><strong>以上命令就搞定php-gd的支持，快快看看phpinfo是否支持了？</strong></span></p>
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可是，如果需要采用不同版本的php时，那就是相当的麻烦，经过摸索，笔者找到了一个较为简单的方式。</p>
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由于需要与系统原生版本共存多个php版本，那么你要求的版本必须采用源码编译。（如果有其他办法，请记得回复告知一下我）</p>
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那么，编译php-gd的支持，网上大多都是通过编译freetype, libpng, libjpeg…好复杂，笔者通过一一尝试，发现还是不成功！！！！后来发现，自己编译的gd库没有包含jpeg和libpng的支持。</p>
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（通过查看自己编译的动态库文件的依赖关系ldd libgd.so.2）</p>
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注意：如果通过自己编译源码的方式，你成功的在源码版本的php中看到了gd支持png,那么恭喜你，你太幸运了。</p>
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<span><strong>下面来说说我的方法： </strong></span></p>
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尽可能的使用系统的库，或者yum源可以安装的库，比如gd, libpng, libjpeg, libfreetype…一切，centos的源都已经准备好，我们只是希望一个不同版本的php而已。由于我们需要源码编译php，所以需要安装对应的源码版本，及带devel标识的版本。</p>
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<code class="xhtml plain">yum install libpng libpng-devel libjpeg-turbo libjpeg-turbo-devel freetype freetype-devel gd</code>
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在php源码目录下：如果出现未定义gdXXX函数错误，需要clean一下编译的结果。</p>
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<code class="xhtml plain">make clean</code>
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再重新make一下：</p>
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<code class="xhtml plain">‘./configure' ‘–with-mysql' ‘–with-apxs2=/usr/local/apache2/bin/apxs' ‘–with-curl' ‘–with-gd' ‘–with-jpeg-dir' ‘–with-png-dir' ‘–with-freetype-dir'</code>
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<strong>注意：</strong>这里我们不需要指定具体的gd, jpeg, png, freetype目录的位置，直接采用系统目录下的版本（省时省力哦）。</p>
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如此安装后，gd库就按照ok了，新生产的libphp5.so文件已经安装到了指定的apache的moduls目录了。</p>
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<code class="xhtml plain">GD Support enabled</code>
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<code class="xhtml plain">GD Version bundled (2.1.0 compatible)</code>
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<code class="xhtml plain">FreeType Support enabled</code>
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<code class="xhtml plain">FreeType Linkage with freetype</code>
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<code class="xhtml plain">FreeType Version 2.4.11</code>
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<code class="xhtml plain">GIF Read Support enabled</code>
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<code class="xhtml plain">GIF Create Support enabled</code>
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<code class="xhtml plain">JPEG Support enabled</code>
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<code class="xhtml plain">libJPEG Version 6b</code>
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<code class="xhtml plain">PNG Support enabled</code>
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<code class="xhtml plain">libPNG Version 1.5.13</code>
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<code class="xhtml plain">WBMP Support enabled</code>
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<code class="xhtml plain">XBM Support enabled</code>
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<span><strong>为什么我们可以省力呢？</strong></span>应为centos安装的gd库已经把jpeg, png等库都已经连接好了。通过ldd liggd.so.2 就可以证明：</p>
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<code class="xhtml plain"># ldd /usr/lib64/libgd.so.2 </code>
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<code class="xhtml plain">linux-vdso.so.1 => (0x00007fff591fe000) </code>
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<code class="xhtml plain">libXpm.so.4 => /lib64/libXpm.so.4 (0x00007f91ed0c8000) </code>
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<code class="xhtml plain">libX11.so.6 => /lib64/libX11.so.6 (0x00007f91ecd8a000) </code>
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<code class="xhtml plain">libjpeg.so.62 => /lib64/libjpeg.so.62 (0x00007f91ecb34000) </code>
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<code class="xhtml plain">libfontconfig.so.1 => /lib64/libfontconfig.so.1 (0x00007f91ec8f8000) </code>
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<code class="xhtml plain">libfreetype.so.6 => /lib64/libfreetype.so.6 (0x00007f91ec652000) </code>
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<code class="xhtml plain">libpng15.so.15 => /lib64/libpng15.so.15 (0x00007f91ec426000) </code>
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<code class="xhtml plain">libz.so.1 => /lib64/libz.so.1 (0x00007f91ec210000) </code>
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<code class="xhtml plain">libm.so.6 => /lib64/libm.so.6 (0x00007f91ebf0e000) </code>
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<code class="xhtml plain">libc.so.6 => /lib64/libc.so.6 (0x00007f91ebb4c000) </code>
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<code class="xhtml plain">libxcb.so.1 => /lib64/libxcb.so.1 (0x00007f91eb92b000) </code>
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<code class="xhtml plain">libdl.so.2 => /lib64/libdl.so.2 (0x00007f91eb727000) </code>
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<code class="xhtml plain">libexpat.so.1 => /lib64/libexpat.so.1 (0x00007f91eb4fc000) </code>
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<code class="xhtml plain">libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f91eb2e0000) </code>
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<code class="xhtml plain">/lib64/ld-linux-x86-64.so.2 (0x00007f91ed52b000) </code>
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<code class="xhtml plain">libXau.so.6 => /lib64/libXau.so.6 (0x00007f91eb0dc000)</code>
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<p>
以上这篇Centos7下PHP安装gd库的实例讲解就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。</p>
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原文链接：https://blog.csdn.net/yin138/article/details/51100830</p>

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Centos7下PHP安装gd库的实例讲解