Installing Java Development Kit (JDK)PhpStorm requires a Java runtime environment (JRE) to operate. On CentOS, install OpenJDK 11 or higher using the package manager:

sudo yum install openjdk-11-jdkVerify the installation with:
java -versionThis ensures PhpStorm has the necessary Java environment to run.
Downloading and Installing PhpStormDownload the Linux version of PhpStorm from JetBrains’ official website. Extract the archive to a directory (e.g., /opt/phpstorm) using:
sudo tar -xvzf PhpStorm-*.tar.gz -C /opt/phpstormOptionally, add the PhpStorm binary directory to your system’s PATH by editing ~/.bashrc (or ~/.profile) and appending:
export PATH=$PATH:/opt/phpstorm/binReload the configuration with source ~/.bashrc. Start PhpStorm by running /opt/phpstorm/bin/phpstorm.sh.
Configuring PHP InterpreterTo enable PhpStorm to analyze PHP code, set the PHP interpreter:
/usr/bin/php) and click OK.This allows PhpStorm to validate PHP syntax and run inspections against your project’s PHP version.Setting Up Code Inspection ToolsPhpStorm supports multiple tools for enforcing code standards and static analysis. A common choice is PHP Code Sniffer (phpcs):
composer global require "squizlabs/php_codesniffer=*"~/.composer/vendor/bin/phpcs).Running Manual Code InspectionTo analyze your entire project or selected files:
Enabling Real-Time Code CheckingPhpStorm provides real-time feedback as you type. To ensure this is active:
Optional: Configuring Other ToolsFor deeper static analysis, integrate tools like PHPStan or Psalm:
composer global require phpstan/phpstan), then configure the executable path in Settings > Languages & Frameworks > PHP > Code Sniffer.composer global require phpstan/psalm), then follow similar steps to add it to PhpStorm.These tools provide advanced checks (e.g., type safety, unused code) to further improve code quality.