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Home / Article / PHP / Command line arguments for the PHP CLI

Command line arguments for the PHP CLI

The PHP command line interface or CLI allows you to run PHP scripts from the command line. It also has a number of flags that can be passed to it which allow you to see which modules are available, do a syntax check on a file, view PHP information etc. This post gives a basic list of the command line arguments available for the PHP CLI and in later posts I will look at some of the options in more detail.

To show all the options that are available, do this:

php --help

This will return a list of all the options available that can be passed to the PHP CLI. The following output comes from a default PHP install on a CentOS 5.0 machine:

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 <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               Display colour syntax highlighted source.
  -v               Version number
  -w               Display 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

  --rf <name>      Show information about function <name>.
  --rc <name>      Show information about class <name>.
  --re <name>      Show information about extension <name>.

To run a PHP script you would simply call “php” followed by the script name, e.g.:

php myscript.php

To get the PHP version you would do this:

php -v

which will output something along the lines of this:

PHP 5.1.6 (cli) (built: Sep 20 2007 10:16:10)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies

That’s all for this post. In future posts I will examine some of the other flags in more detail.

Check Out These Related posts:

  1. Update PHP from the command line with YUM
  2. Zend Framework Controller Router example
  3. Sending email with Zend_Mail
  4. Command line arguments with a PHP CLI script

Filed Under: PHP

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