Name
exec
Synopsis
$last_line = exec($command);
$last_line = exec($command, $output_array);
$last_line = exec($command, $output_array, $return_code);
Executes command as a Unix command in a subshell.
Only the last line of the command output is returned. If an array is
provided as the second argument, all of the lines of output from the
command are placed in the array. If a third argument is present, the
return code from the command is placed in that variable.
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