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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 system() |
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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 POpen |
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{ |
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|
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/** |
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* Emulate exec() with system() |
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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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|
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$handle = @popen($command, "r"); |
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if ($handle === false) { |
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return false; |
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} |
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|
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$result = ''; |
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while (!@feof($handle)) { |
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$result .= fread($handle, 1024); |
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} |
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|
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//Note: Unix Only: |
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// pclose() is internally implemented using the waitpid(3) system call. |
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// To obtain the real exit status code the pcntl_wexitstatus() function should be used. |
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$result_code = pclose($handle); |
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|
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$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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} |
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} |
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|
