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<?php |
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|
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namespace ExecWithFallback; |
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|
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/** |
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* Emulate exec() with proc_open() |
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* |
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* @package ExecWithFallback |
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* @author Bjørn Rosell <[email protected]> |
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*/ |
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class ProcOpen |
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{ |
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|
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/** |
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* Emulate exec() with proc_open() |
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* |
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* @param string $command The command to execute |
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* @param string &$output (optional) |
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* @param int &$result_code (optional) |
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* |
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* @return string | false The last line of output or false in case of failure |
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*/ |
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public static function exec($command, &$output = null, &$result_code = null) |
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{ |
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$descriptorspec = array( |
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//0 => array("pipe", "r"), |
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1 => array("pipe", "w"), |
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//2 => array("pipe", "w"), |
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//2 => array("file", "/tmp/error-output.txt", "a") |
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); |
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|
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$cwd = getcwd(); // or is "/tmp" better? |
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$processHandle = proc_open($command, $descriptorspec, $pipes, $cwd); |
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$result = ""; |
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if (is_resource($processHandle)) { |
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// Got this solution here: |
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// https://stackoverflow.com/questions/5673740/php-or-apache-exec-popen-system-and-proc-open-commands-do-not-execute-any-com |
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//fclose($pipes[0]); |
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$result = stream_get_contents($pipes[1]); |
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fclose($pipes[1]); |
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//fclose($pipes[2]); |
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$result_code = proc_close($processHandle); |
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|
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// split new lines. Also remove trailing space, as exec() does |
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$theOutput = preg_split('/\s*\r\n|\s*\n\r|\s*\n|\s*\r/', $result); |
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|
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// remove the last element if it is blank |
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if ((count($theOutput) > 0) && ($theOutput[count($theOutput) -1] == '')) { |
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array_pop($theOutput); |
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} |
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|
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if (count($theOutput) == 0) { |
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return ''; |
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} |
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if (gettype($output) == 'array') { |
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foreach ($theOutput as $line) { |
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$output[] = $line; |
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} |
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} else { |
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$output = $theOutput; |
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} |
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return $theOutput[count($theOutput) -1]; |
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} else { |
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return false; |
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} |
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} |
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} |
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|
