Passing command-line arguments into PHP

Say you have a PHP script and you want to pass command-line arguments into the script, e.g. calling the script like this:

php script.php datafile.txt 10 100

PHP stores all command-line arguments in an array:
$argv ⁰ => “script.php”
$argv ¹ => “datafile.txt”
$argv ² => 10
$argv ³ => 100

Then you can process the arguments:

if (!isset($argv1) {
print “Usage: php script.php  [ ]\n”;
exit(1);
}
$filename = $argv1;
…

See the article Using PHP from the command line for details.