ubuntu编译安装php7.2.x

Author：友儿
发布时间：January 10, 2022
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Categories：小技巧

ubuntu编译安装php

选择版本 php官网下载链接
官网编译安装文档
当前系统
Ubuntu 16.04.7 LTS (使用cat /etc/issue查看)
需求
编译安装php7.2.x
执行configure报错总结

报错一

  configure: error: The pkg-config script could not be found or is too old.  Make sure it
  is in your PATH or set the PKG_CONFIG environment variable to the full path to pkg-config.

解决办法
```
  sudo apt-get install  pkg-config -y
```
报错二
```
  No package 'libxml-2.0' found
```

解决办法

  sudo apt-get install  libxml2 libxml2-dev -y

报错三
```
  No package 'sqlite3' found
```

解决办法

  sudo apt-get install libsqlite3-dev -y

报错四
```
  No package 'zlib' found
```
解决办法
```
  sudo apt-get install zlib1g-dev -y
```
安装扩展报错

报错五

Cannot find autoconf. Please check your autoconf installation and the
$PHP_AUTOCONF environment variable. Then, rerun this script.

解决办法

sudo apt-get install autoconf -y

php -m 显示不出来某些扩展

#查看php配置文件所在路径
vagrant@ubuntu-xenial:/data/www/software/php-7.4.27$ php --ini
Configuration File (php.ini) Path: /usr/local/lib
Loaded Configuration File:         (none)
Scan for additional .ini files in: (none)
Additional .ini files parsed:      (none)
#查找当前php.ini位置
vagrant@ubuntu-xenial:/data/www/software/php-7.4.27$ sudo find / -name php.ini
/usr/local/php/php.ini
#复制一份到默认读取路径
vagrant@ubuntu-xenial:/data/www/software/php-7.4.27$ sudo cp /usr/local/php/php.ini /usr/local/lib/
vagrant@ubuntu-xenial:/data/www/software/php-7.4.27$ php --ini
Configuration File (php.ini) Path: /usr/local/lib
Loaded Configuration File:         /usr/local/lib/php.ini
Scan for additional .ini files in: (none)
Additional .ini files parsed:      (none)

因内存不足导致的编译失败

#查看当前内存
free -m 
#创建swap挂载点
sudo  mkdir /opt/images/swap
sudo rm -rf /opt/images/swap
#设置挂载swap
sudo dd if=/dev/zero of=/opt/images/swap bs=1024 count=2048000
sudo mkswap /opt/images/swap
#开启swap
sudo swapon /opt/imgaes/wsap
#关闭swap并删除挂载文件
sudo swapoff swap
sudo rm -f /opt/images/swap