Re: [PHP] exec and system do not work

[Robert Cummings]

On 13-08-25 11:41 PM, Ethan Rosenberg wrote:

Dear List -

I'm lost on this one -

This works -

$out = system("ls -l ",$retvals);
printf("%s", $out);

This does -

echo exec("ls -l");

This does not -

if( !file_exists("/var/www/orders.txt"));
{
     $out = system("touch /var/www/orders.txt", $ret);
     $out2 = system("chmod 766 /var/www/orders.txt", $ret);
     echo 'file2<br />';
     echo file_exists("/var/www/orders.txt");
}

and this does not -

if( !file_exists("/var/www/orders.txt"));
{
     exec("touch /var/www/orders.txt");
     exec("chmod 766 /var/www/orders.txt");
     echo 'file2<br />';
     echo file_exists("/var/www/orders.txt");
}

Ethan

Hi Ethan,

Is there a reason you're using shell commands to achieve the following:

<?php

    $path = '/var/www/orders.txt';
    if( !file_exists( $path ) )
    {
        if( !touch( $path ) )
        {
            echo 'Failed to touch file into existence: '.$path."\n";
        }
        else
        {
            if( !chmod( $path, 0766 ) )
            {
                echo 'Failed to update file permissions: '.$path."\n";
            }
        }
    }

?>

Also, why are you setting the executable bit on a text file? :)

Cheers,
Rob.
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