$argc — The number of arguments passed to script
Contains the number of arguments passed to the current script when running from the command line.
Замечание: The script's filename is always passed as an argument to the script, therefore the minimum value of $argc is 1.
Замечание: This variable is only available when register_argc_argv is enabled.
Пример #1 $argc example
<?php
var_dump($argc);
?>
When executing the example with: php script.php arg1 arg2 arg3
Результатом выполнения данного примера будет что-то подобное:
int(4)