Change PHP keywords to comply with PSR2

Signed-off-by: CodeLingoBot <bot@codelingo.io>

Yubico.php

@@ -255,7 +255,7 @@ function getParameters($parameters)
 	 * @return mixed               PEAR error on error, true otherwise
 	 * @access public
 	 */
-	function verify($token, $use_timestamp=null, $wait_for_all=False,
+	function verify($token, $use_timestamp=null, $wait_for_all=false,
 			$sl=null, $timeout=null)
 	{
 	  /* Construct parameters string */
@@ -314,8 +314,8 @@ function verify($token, $use_timestamp=null, $wait_for_all=False,
 
 	  /* Execute and read request. */
 	  $this->_response=null;
-	  $replay=False;
-	  $valid=False;
+	  $replay=false;
+	  $valid=false;
 	  do {
 	    /* Let curl do its work. */
 	    while (($mrc = curl_multi_exec($mh, $active))
@@ -367,7 +367,7 @@ function verify($token, $use_timestamp=null, $wait_for_all=False,
 
 		    $parameters=array('nonce','otp', 'sessioncounter', 'sessionuse', 'sl', 'status', 't', 'timeout', 'timestamp');
 		    sort($parameters);
-		    $check=Null;
+		    $check=null;
 		    foreach ($parameters as $param) {
 		      if (array_key_exists($param, $response)) {
 			if ($check) $check = $check . '&';
@@ -382,22 +382,22 @@ function verify($token, $use_timestamp=null, $wait_for_all=False,
 		    if($response['h'] == $checksignature) {
 		      if ($status == 'REPLAYED_OTP') {
 			if (!$wait_for_all) { $this->_response = $str; }
-			$replay=True;
+			$replay=true;
 		      } 
 		      if ($status == 'OK') {
 			if (!$wait_for_all) { $this->_response = $str; }
-			$valid=True;
+			$valid=true;
 		      }
 		    }
 		  } else {
 		    /* Case 3. We check the status directly */
 		    if ($status == 'REPLAYED_OTP') {
 		      if (!$wait_for_all) { $this->_response = $str; }
-		      $replay=True;
+		      $replay=true;
 		    } 
 		    if ($status == 'OK') {
 		      if (!$wait_for_all) { $this->_response = $str; }
-		      $valid=True;
+		      $valid=true;
 		    }
 		  }
 		}

demo.php

@@ -99,7 +99,7 @@
 
 <?php
    require_once 'Auth/Yubico.php';
-   $yubi = new Auth_Yubico($id, $key, NULL, $httpsverify);
+   $yubi = new Auth_Yubico($id, $key, null, $httpsverify);
    if ($ask_url) {
       $urls=explode(",", $url);
       foreach($urls as $u) $yubi->addURLpart($u);

example/Modhex.php

@@ -35,15 +35,15 @@ static function decode($token) {
 		$decoded = "";				// decoded string to be returned
 
 		// strings must have an even length
-		if ( $tokLen % 2 != 0 ) { return FALSE; }
+		if ( $tokLen % 2 != 0 ) { return false; }
 
 		for ($i = 0; $i < $tokLen; $i=$i+2 ) {
 			$high = strpos(ModHex::$TRANSKEY, $token[$i]);
 			$low = strpos(ModHex::$TRANSKEY, $token[$i+1]);
 
 			// if there's an invalid character in the encoded $token, fail here.
-			if ( $high === FALSE || $low === FALSE ) 
-				return FALSE;
+			if ( $high === false || $low === false ) 
+				return false;
 
 			$decoded .= chr(($high << 4) | $low);
 		}