php man page for argc

ARGC(3) 								 1								   ARGC(3)

$argc - The number of arguments passed to script

	Contains the number of arguments passed to the current script when running from the command line.

       Note

	       The script's filename is always passed as an argument to the script, therefore the minimum value of $argc is 1.

       Note

	       This variable is not available when register_argc_argv is disabled.

       Example #1

	      $argc example

	      <?php
	      var_dump($argc);
	      ?>

	       When executing the example with: php script.php arg1 arg2 arg3

	      The above example will output something similar to:

	      int(4)

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