To install PHP from source code, you can follow these general steps. Keep in mind that the exact commands and steps may vary depending on your operating system. Below, I'll provide a basic guide for a RPM-based CentOS, assuming you have the necessary development tools installed.

Download Source

We will get the download link of latest stable PHP source package from:

• PHP Download page: https://www.php.net/downloads

• curl -LO https://www.php.net/distributions/php-8.1.12.tar.gz

• tar -xvf php-8.1.12.tar.gz

• cd php-8.1.12

install Dependencies in Centos

• sudo yum install epel-release -y

• yum install autoconf libtool re2c bison libxml2-devel bzip2-devel libcurl-devel gcc libpng-devel libicu-devel gcc-c++ libmcrypt-devel libwebp-devel libjpeg-devel openssl-devel libxslt-devel make oniguruma-devel libsodium libsodium-devel libzip-devel.x86_64 -y

• yum install -y libxml2-devel openssl-devel \

  sqlite-devel curl-devel libpng-devel \

  libwebp-devel libjpeg-devel freetype-devel

compile php

• ./configure --prefix=/usr/local/php --with-freetype --disable-short-tags --enable-xml --enable-cli --with-openssl --with-pcre --with-pcre-jit --with-zlib --enable-bcmath --with-bz2 --with-curl --enable-exif --enable-gd --enable-intl --with-mysqli --enable-pcntl --with-pdo-mysql --enable-soap --enable-sockets --with-xmlrpc --with-zip --with-webp --with-jpeg --enable-png --enable-json --enable-hash --enable-mbstring --with-mcrypt --with-libxml --with-libxml --enable-ctype --enable-calendar --enable-dom --enable-fileinfo --with-mhash --enable-incov --enable-opcache --enable-phar --enable-simplexml --with-xsl --with-pear --with-sodium

• make

• make test

• make install

• echo 'export PATH="/usr/local/php/bin:$PATH"' >> ~/.bashrc

• source ~/.bashrc

• php --version

• cp php.ini-production /usr/local/php/lib/php.ini