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how to run shell script with browser action as trigger


BrainPill
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I have a complicated situation

I want to execute a php script that runs in the background while a browser script is used as trigger.

 

I use wamp CLI to execute a php script like this:

 

php test.php

 

 

I want to execute this script in the browser with this script

 

$outp = shell_exec("php test.php");


echo '<br>';
echo $outp;
echo '<br>';

 

It doesnt work. The page in the browser is giving no output

I can do shell_exec("whoami"), or shell_exec('dir'); So this works, but executing a script not.

 

What causes this error?

 

 

 

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Do I have to set a path or so for the Command Line Interface , PHP_CLI ?

If so, how should this be done?

 

EDIT:

as there are many OS and approaches of PHP I have some additional info about my set up.

I use WAMP 3.1.9 with windows 10. PHP version 7.3.5

Edited by BrainPill
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On 1/21/2020 at 12:39 PM, niche said:

what happens when you add a path? 

I tried that. Are there specific rules I should follow? 

What actually happens when you call a php shell_exec command? Where will the command look to start something? 

--------------------------------------------------------

Edit: I tried the following

 


$var = php_sapi_name();
var_dump($var);

the output is: apache2handler

In the manual of php is a number of outputs mentioned 

Quote

aolserver, apache, apache2filter, apache2handler, caudium, cgi (until PHP 5.3), cgi-fcgi, cli, cli-server, continuity, embed, fpm-fcgi, isapi, litespeed, milter, nsapi, phpdbg, phttpd, pi3web, roxen, thttpd, tux, and webjames.

https://www.php.net/manual/en/function.php-sapi-name.php

 

I dont know if this is the solution but it coudl be so does anyone know if the sapi can be set to cli or cli-server maybe?

 

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I think the issue is hello_world.php in not a command.

This works fine:

shell_exec("mkdir data5");
EDIT:

This might help - 

https://hotexamples.com/examples/-/-/shell_exec/php-shell_exec-function-examples.html

Edited by niche
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