php --help

# 查看 php 版本php -v# 查看已开启扩展php -m# 查看扩展版本php --ri package# 查看 php 配置文件存放路径php --ini

php --hlep

Error in argument 1, char 1: no argument for option -Usage: php [options] [-f] <file> [--] [args...] php [options] -r <code> [--] [args...] php [options] [-B <begin_code>] -R <code> [-E <end_code>] [--] [args...] php [options] [-B <begin_code>] -F <file> [-E <end_code>] [--] [args...] php [options] -S <addr>:<port> [-t docroot] [router] php [options] -- [args...] php [options] -a-a Run interactively-c <path>|<file> Look for php.ini file in this directory-n No configuration (ini) files will be used-d foo[=bar] Define INI entry foo with value 'bar'-e Generate extended information for debugger/profiler-f <file>Parse and execute <file>.-h This help-i PHP information-l Syntax check only (lint)-m Show compiled in modules-r <code>Run PHP <code> without using script tags <?..?>-B <begin_code>Run PHP <begin_code> before processing input lines-R <code>Run PHP <code> for every input line-F <file>Parse and execute <file> for every input line-E <end_code>Run PHP <end_code> after processing all input lines-H Hide any passed arguments from external tools.-S <addr>:<port> Run with built-in web server.-t <docroot> Specify document root <docroot> for built-in web server.-s Output HTML syntax highlighted source.-v Version number-w Output source with stripped comments and whitespace.-z <file>Load Zend extension <file>.args...Arguments passed to script. Use -- args when first argument starts with - or script is read from stdin--iniShow configuration file names--rf <name>Show information about function <name>.--rc <name>Show information about class <name>.--re <name>Show information about extension <name>.--rz <name>Show information about Zend extension <name>.--ri <name>Show configuration for extension <name>.