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PHP command line, echo, & exec

PHP command line, echo, & exec

PHP command line, echo, & exec

I have a PHP script running on the command line on Apache/Windows. It calls exec() to run an external program (dbisql). While it's waiting for the program to finish running, which could be from 1 second to 10 minutes, I am trying to have it output something to indicate that it's still "alive". I know you can do this to have PHP echo text on the same line:

CODE --> php

    echo "Starting Iteration" . "\n\r";
    for ($i=0;$i<10000;$i++) {
        echo "\r" . $i;
    echo "Ending Iteration" . "\n\r";

But it seems that while the external program in executing PHP is "frozen" and can't do anything while it waits for the program to finish. Is there some way I can have it echo out something while it waits for the external program to finish?


RE: PHP command line, echo, & exec

Figured out a way around it. I used this:

CODE --> php

$wshshell = new COM("WScript.Shell");
$xexec = $wshshell->Run($cmd, 0, false); 

to start the command and then below is a while loop that scans for the presence of a file the dbisql generates. That fixed it.

RE: PHP command line, echo, & exec

There are process forking functions that are native in php.

RE: PHP command line, echo, & exec

Per oracledba.help, to get unbuffered, i.e. real-time output to the console use STDOUT not echo or print.



fwrite(STDOUT,"Hello World! \n"); 

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