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using exec() function

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Mar 15.2007

I’m adapting someone else’s code to run on my site.

A C program should be run using exec() but it seems to not work.

The code is like this:

[code=php]…
$_pg = $_SERVER[‘DOCUMENT_ROOT’].”/path/cprogram”;
$_p = $_params[‘p’] * 1000;
$_stmt = “{$_pg} 3 {$_p} {$_params[‘t’]}”;
$_line = exec($_stmt);
[/code]

When I print_r($_line) it is an empty array, meaning its not working. The original code works on the same server, but I had to change a lot of that code.

I think the problem is with the line stating $_stmt. I havent seen that syntax of “{…}” before. Is there another way to write that?

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PHP

5 Comments(s) ↴

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@NightShift58Mar 15.2007 — [code=php]...$_pg = $_SERVER['DOCUMENT_ROOT']."/path/cprogram";
$_p = $_params['p'] * 1000;
$_stmt = $_pg . " 3 " . $_p . " " . $_params['t'];
$_line = array();
exec($_stmt, &$_line, &$_success);
[/code]
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@mameha1977authorMar 15.2007 — Hmm still not working.

If I use this code I get this error:

[code=php]$_pg = $_SERVER['DOCUMENT_ROOT']."/path/cprogram";
$_p = $_params['p'] * 1000;

$_stmt = $_pg . " 3 " . $_p . " " . $_params['t'];
$_line = array();
exec($_stmt, &$_line, &$_success);
$_info = mb_split(",", $_line);[/code]

Warning: mb_split() expects parameter 2 to be string, array given in C:wampwwwpathtopage.php on line x[/QUOTE]

If I print_r($_line) it is an empty array.

The original code uses:
[code=php]$_line = exec($_stmt); [/code]
...so I think exec returns a value which has to be passed into $_line.
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@mameha1977authorMar 15.2007 — Its OK I got it to work. your code was ok. my path to the script was wrong.
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@NightShift58Mar 15.2007 — All's well that ends well!
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