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<?php namespace ExecWithFallback; /** * Emulate exec() with system() * * @package ExecWithFallback * @author Bjørn Rosell <it@rosell.dk> */ class POpen { /** * Emulate exec() with system() * * @param string $command The command to execute * @param string &$output (optional) * @param int &$result_code (optional) * * @return string | false The last line of output or false in case of failure */ public static function exec($command, &$output = null, &$result_code = null) { $handle = @popen($command, "r"); if ($handle === false) { return false; } $result = ''; while (!@feof($handle)) { $result .= fread($handle, 1024); } //Note: Unix Only: // pclose() is internally implemented using the waitpid(3) system call. // To obtain the real exit status code the pcntl_wexitstatus() function should be used. $result_code = pclose($handle); $theOutput = preg_split('/\s*\r\n|\s*\n\r|\s*\n|\s*\r/', $result); // remove the last element if it is blank if ((count($theOutput) > 0) && ($theOutput[count($theOutput) -1] == '')) { array_pop($theOutput); } if (count($theOutput) == 0) { return ''; } if (gettype($output) == 'array') { foreach ($theOutput as $line) { $output[] = $line; } } else { $output = $theOutput; } return $theOutput[count($theOutput) -1]; } }
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