<?php

namespace ExecWithFallback;

/**
 * Emulate exec() with proc_open()
 *
 * @package    ExecWithFallback
 * @author     Bjørn Rosell <it@rosell.dk>
 */
class ProcOpen
{
    /**
     * Emulate exec() with proc_open()
     *
     * @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)
    {
        $descriptorspec = array(
            //0 => array("pipe", "r"),
            1 => array("pipe", "w"),
            //2 => array("pipe", "w"),
            //2 => array("file", "/tmp/error-output.txt", "a")
        );

        $cwd = getcwd(); // or is "/tmp" better?
        $processHandle = proc_open($command, $descriptorspec, $pipes, $cwd);
        $result = "";
        if (is_resource($processHandle)) {
            // Got this solution here:
            // https://stackoverflow.com/questions/5673740/php-or-apache-exec-popen-system-and-proc-open-commands-do-not-execute-any-com
            //fclose($pipes[0]);
            $result = stream_get_contents($pipes[1]);
            fclose($pipes[1]);
            //fclose($pipes[2]);
            $result_code = proc_close($processHandle);

            // split new lines. Also remove trailing space, as exec() does
            $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];
        } else {
            return false;
        }
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NTM2NDIwNDI0NjA1MzU4OSA3MjE0NTY2Njc2ODMwNjgzIDYzMzg1MTM4NDg1MDE1Nzk=