0";
$res = mysql_query($query);
if(mysql_num_rows($res) > 0)
{
$row = mysql_fetch_assoc($res);
return intval($row['memid']);
}
return -1;
}
/**
* Produces a log entry with the error message with log level E_USER_WARN
* and a random ID an returns a message that can be displayed to the user
* including the generated ID
*
* @param $errormessage string
* The error message that should be logged
* @return string containing the generated ID that can be displayed to the
* user
*/
function failWithId($errormessage) {
$errorId = rand();
trigger_error("$errormessage. ID: $errorId", E_USER_WARNING);
return sprintf(_("Something went wrong when processing your request. ".
"Please contact %s for help and provide them with the ".
"following ID: %d"),
"support@cacert.org",
$errorId);
}
/**
* Runs a command on the shell and return it's exit code and output
*
* @param string $command
* The command to run. Make sure that you escapeshellarg() any non-constant
* parts as this is executed on a shell!
* @param string|bool $input
* The input that is passed to the command via STDIN, if true the real
* STDIN is passed through
* @param string|bool $output
* The output the command wrote to STDOUT (this is passed as reference),
* if true the output will be written to the real STDOUT. Output is ignored
* by default
* @param string|bool $errors
* The output the command wrote to STDERR (this is passed as reference),
* if true (default) the output will be written to the real STDERR
*
* @return int|bool
* The exit code of the command, true if the execution of the command
* failed (true because then
* if (runCommand('echo "foo"')) handle_error(); will work)
*/
function runCommand($command, $input = "", &$output = null, &$errors = true) {
$descriptorspec = array();
if ($input !== true) {
$descriptorspec[0] = array("pipe", "r"); // STDIN for child
}
if ($output !== true) {
$descriptorspec[1] = array("pipe", "w"); // STDOUT for child
}
if ($errors !== true) {
$descriptorspec[2] = array("pipe", "w"); // STDERR for child
}
$proc = proc_open($command, $descriptorspec, $pipes);
if (is_resource($proc))
{
if ($input !== true) {
fwrite($pipes[0], $input);
fclose($pipes[0]);
}
if ($output !== true) {
$output = stream_get_contents($pipes[1]);
}
if ($errors !== true) {
$errors = stream_get_contents($pipes[2]);
}
return proc_close($proc);
} else {
return true;
}
}