Question

I have made a .jar file that joins two wave files together.I call it with the command prompt like so.

java -jar WaveAppender.jar 1.wav 2.wav out.wav

I am trying to use php now to execute this .jar file,but the code below does not seem to work

$theFiles = Array("1.wav","2.wav","output.wav");
exec("java -jar WaveAppender.jar $theFiles");

I do not get any errors but the out.wav is not written.

Am I calling exec() wrong?

Answer 1

You can’t use arrays directly like that in a string. The resulting command line that would generated would be:

java -jar WaveAppender.jar Array

If what you actually want is

java -jar WaveAppender.jar 1.wav 2.wav 3.wav

then you need to do this:

exec("java -jar WaveAppender.jar " . implode (' ', $theFiles));