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wp-content/plugins/wp-optimize/vendor/rosell-dk/exec-with-fallback/src/POpen.php

@@ -0,0 +1,60 @@
+<?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];
+    }
+}