Trying to run a jar from PHP

Question

After reading some of the posts in this website related to exactly the same issue I\'ve got, I found that none of them were giving me a successful result:

How to run a j

Answer 1

You have to do something like this:

//REPLACE THIS PATH WITH THE REAL JAVA PATH
$handle = popen(`"C:\\Program Files (x86)\\Java\\jre7\\bin\\java.exe arguments"`, "r"));
//You can read with $read = fread($handle, 2096)
pclose($handle);

exec will not work on Windows (for "external" executables) and in most cases you'll have to provide the full path to Java.

Answer 2

You can check with shell_exec, system() and other function pctl function as well. These functions might be disabled, so before executing check them or you can use this as well

function execInBackground($cmd) { 
    if (substr(php_uname(), 0, 7) == "Windows"){ 
        pclose(popen("start /B ". $cmd, "r"));  
    } 
    else { 
        exec($cmd . " > /dev/null &");   
    } 
} 

More detail found here.

Answer 3

This is not a straight answer, but if calling java from Php does not work under any circumstances, you can also run jar files from Python scripts. I mean Php --> Python --> jar.

Calling Python scripts from Php always works for me.

This post helped me in the past:

Python: How can I execute a jar file through a python script