PHP using ssh2_exec to execute script with parameters from query

Question

I am trying to execute a script from a server, the parameter is retrieved from MySQL query and stored into $test is there a way to use this as a parameter for my script? I have a script stored in a parameter as well $script

<?php

include("db.php");  
$user = 'user';
$password = 'pwd';

$script = '/my/path/to/script/script.sh';

...

$testResult = mysqli_query($dbConnection, $queryNextTest);
$test = $testResult->fetch_object()->test_script; //this is my parameter obtained from query

$stream = ssh2_exec($connection, $script); //how can I use test as my paramter to execute the 

?>

So what I am looking for is something like this: $stream = ssh2_exec($connection, '/my/path/to/script/script.sh $test'); but the $test cannot be inside the quotes.

Duc Filan · Accepted Answer · 2017-09-16 02:43:08Z

2

You should change the quote to double and use curly bracket to express your variable like this:

$stream = ssh2_exec($connection, "{$script} {$test}");

Or even without curly braces like this:

$stream = ssh2_exec($connection, "$script $test");

edited Sep 16, 2017 at 2:43

answered Sep 16, 2017 at 0:27

Duc Filan

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4 Comments

tiger_groove Over a year ago

Am I allowed to combine two variables like this? $stream = ssh2_exec($connection, "{$script} {$test}");

Duc Filan Over a year ago

Yes, definitely.

tiger_groove Over a year ago

One more question, is it always good to use double quotes? What are the advantages from double quotes to single quotes and vice versa?

Duc Filan Over a year ago

No, you each one has its pros and cons in certain cases. You can refer this link for more info: stackoverflow.com/questions/3446216/…

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