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phpsystemexecute

Execute command in PHP returns error code 127

I am trying to execute cs2cs command for converting data format. But it always returns error code 127

Here is the code snippet:

$r = system('echo "830404.55 810145.46" | cs2cs +init=epsg:2326 +to +init=epsg:4326 -f %.10f', $result);
//$r = system('sh /var/www/html/et/test.sh', $result); // returns error code 127
echo $r.'<br>'; // print nothing
echo $result.'<br>'; // print 127

  1. It is OK when I execute 'echo "830404.55 810145.46" | cs2cs +init=epsg:2326 +to +init=epsg:4326 -f %.10f' with command line in Linux system.

  2. It is OK when I execute '/var/www/html/et/test.sh' with command line in Linux system.

Any idea of why it happens? I am not sure it is problem with PHP or cs2cs. I think it may caused by cs2cs cannot be executed by apache user account. If it is the case, how to solve it? Thanks.

Solution

  • It works if I use the full path of cs2cs:

    $r = system('echo "830404.55 810145.46" | /usr/bin/cs2cs +init=epsg:2326 +to +init=epsg:4326 -f %.10f', $result);