$argv — Array of arguments passed to script
Contains an array of all the arguments passed to the script when running from the command line.
Note: The first argument is always the current script's filename, therefore $argv[0] is the script's name.
Note: This variable is only available when register_argc_argv is enabled.
Example #1 $argv example
<?php
var_dump($argv);
?>
When executing the example with: php script.php arg1 arg2 arg3
上例的输出类似于：
array(4) {
[0]=>
string(10) "script.php"
[1]=>
string(4) "arg1"
[2]=>
string(4) "arg2"
[3]=>
string(4) "arg3"
}