Question:

I'm trying to send GET parameters to a php using php's exec command, but when I put the parameters the script doesn't run, it doesn't reach the other php, follow my code:

exec.php:

$cmd = 'php teste.php?id=10,11';
$pid = exec($cmd.' > /dev/null &');

test.php:

$ids = $_GET["id"];
echo $ids;

I don't get error msgs.

Answer:

As I see it, you're trying to pass an argument to the PHP script that runs from the command line.

On the command line, you do not use $_GET to access script arguments. You must use the $argv variable to access these arguments.

Passing and accessing arguments

Create a cmd.php file, do the following:

print_r($argv);

Run from the command line:

>>> php cmd.php 1 2 3

The result will be:

Array
(
    [0] => cmd.php
    [1] => 1
    [2] => 2
    [3] => 3
)

Note that the first argument to $argv is the name of the running script. This is always the case.

If you want to get just the arguments after the script, you can use array_slice , like this:

print_r(array_slice($argv, 1))

When you run a php script via the command line, each item separated by a space after php is considered a command argument.

In other words, you won't use the interrogation ? as you do for browser query strings.

But what if I want to pass an argument that has space?

If you want to pass an argument that contains a literal space, you can use quotation marks around the argument.

So:

>>> php cmd.php "olá mundo"

Result:

Array
(
    [0] => cmd.php
    [1] => olá mundo
)

What if I want to use quotes as an argument?

Then you have to escape with the \ .

Example:

>>> php cmd.php "olá \""

Result:

Array
(
    [0] => cmd.php
    [1] => olá "
)

And before you ask me "How to escape the bar too", I'll say that just use another bar.

Example:

  >>> php cmd.php \\My\\Namespace

Exit:

Array
(
    [0] => cmd.php
    [1] => \My\Namespace
)

Count of past arguments

To count the number of arguments, you can also use the $argc variable.

Create a count_args.php file to test and put in the following:

  print_r($argc)

Run from the command line:

 >>> php count_args.php 1 2 3 4

The result will be:

5

Nothing prevents you from using count($argv) to count the arguments either.