"php -help" - Command Line Options

This section provides a tutorial example on how to see all command line options supported by the PHP engine: php -help.

If you want to know what command line options are supported by the PHP engine, you can run PHP with the "-help" option:

herong> \php\php -help

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] -- [args...]
   php [options] -a

  -a               Run interactively
  -c <path>|<file> Look for php.ini file in this directory
  -n               No php.ini file 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

  --ini            Show 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>.

Table of Contents

 About This Book

Introduction and Installation of PHP

 What Is PHP

 Downloading and Installing PHP 7.3 for Windows

"php -help" - Command Line Options

 "php -m" - Built-in Modules

 "php -i" - PHP Engine Information

 php.ini - PHP Runtime Configuration

 Hello.php - My First PHP Script

 "php -a" - PHP Interactive Shell

 Downloading and Installing PHP Documentation

 Managing PHP Engine and Modules on macOS

 Managing PHP Engine and Modules on CentOS

 cURL Module - Client for URL

 DOM Module - Parsing HTML Documents

 GD Module - Manipulating Images and Pictures

 MySQLi Module - Accessing MySQL Server

 OpenSSL Module - Cryptography and SSL/TLS Toolkit

 PCRE Module - Perl Compatible Regular Expressions

 SOAP Module - Creating and Calling Web Services

 SOAP Module - Server Functions and Examples

 Zip Module - Managing ZIP Archive Files

 References

 Full Version in PDF/EPUB