Executing a command in terminal using php

Asked Dec 05 '14 at 20:49

Active Dec 05 '14 at 20:49

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I was trying to run an external command via php. Actually I want to compile a java file. I've tried this and this. But unfortunately, in my case the java file doesn't compiling.

what is wrong in this code ?

exec("javac Main.java");

but when I compiled it manually, and then execute the follwing command, it works fine.

exec("java Main");

edited May 23 '17 at 12:31

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asked Dec 05 '14 at 20:49

Namodaya Balaarachchi

Do you have tried absolute paths? – Tim Wißmann Dec 05 '14 at 20:54
@timmy I'm running on windows. Is it really neccessary to give absolute path ? I mean in the server ? – Namodaya Balaarachchi Dec 05 '14 at 20:56
couldn't hurt to try – Jonathan Kuhn Dec 05 '14 at 20:57
@JonathanKuhn Tried, But still doesn't work :( – Namodaya Balaarachchi Dec 05 '14 at 20:59
Your writing your code on Windows, but whats the OS on the Server? Do you use UNIX or Windows absolute paths? Is the JDK installed on your server? – Tim Wißmann Dec 05 '14 at 21:01
@timmy and the thing is when running 'java Main' it works without the absolute path. – Namodaya Balaarachchi Dec 05 '14 at 21:02
@timmy I'm running on WAMP server. Yep i've installed it. – Namodaya Balaarachchi Dec 05 '14 at 21:02
Are there any error messages? (Think to enable `error_reporting(-1)`) – Tim Wißmann Dec 05 '14 at 21:04
@timmy It returns 1 as the return value. I'm new to this and, I have no idea what it means. – Namodaya Balaarachchi Dec 05 '14 at 21:16
2

I think 1 is an error code of `javac`... What does it return with [`shell_exec`](http://php.net/manual/en/function.shell-exec.php)? The difference between [`exec`](http://php.net/manual/en/function.exec.php) and [`shell_exec`](http://php.net/manual/en/function.shell-exec.php) is, that `exec` does only return the last line of the output. – Tim Wißmann Dec 05 '14 at 21:38

Executing a command in terminal using php

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