diff --git a/apps/files_external/ajax/oauth2.php b/apps/files_external/ajax/oauth2.php
index db2570800a..8b257b77ef 100644
--- a/apps/files_external/ajax/oauth2.php
+++ b/apps/files_external/ajax/oauth2.php
@@ -46,8 +46,8 @@ if (isset($_POST['client_id']) && isset($_POST['client_secret']) && isset($_POST
 	$client->setApprovalPrompt('force');
 	$client->setAccessType('offline');
 	if (isset($_POST['step'])) {
-		$step = $_POST['step'];
-		if ($step == 1) {
+		$step = (int) $_POST['step'];
+		if ($step === 1) {
 			try {
 				$authUrl = $client->createAuthUrl();
 				OCP\JSON::success(array('data' => array(
@@ -58,7 +58,7 @@ if (isset($_POST['client_id']) && isset($_POST['client_secret']) && isset($_POST
 					'message' => $l->t('Step 1 failed. Exception: %s', array($exception->getMessage()))
 				)));
 			}
-		} else if ($step == 2 && isset($_POST['code'])) {
+		} else if ($step === 2 && isset($_POST['code'])) {
 			try {
 				$token = $client->authenticate((string)$_POST['code']);
 				OCP\JSON::success(array('data' => array(
diff --git a/apps/files_external/lib/Command/Import.php b/apps/files_external/lib/Command/Import.php
index 96afc86ba2..712a8851c8 100644
--- a/apps/files_external/lib/Command/Import.php
+++ b/apps/files_external/lib/Command/Import.php
@@ -161,8 +161,8 @@ class Import extends Base {
 				if (
 					$existingMount->getMountPoint() === $mount->getMountPoint() &&
 					$existingMount->getApplicableGroups() === $mount->getApplicableGroups() &&
-					$existingMount->getApplicableUsers() == $mount->getApplicableUsers() &&
-					$existingMount->getBackendOptions() == $mount->getBackendOptions()
+					$existingMount->getApplicableUsers() === $mount->getApplicableUsers() &&
+					$existingMount->getBackendOptions() === $mount->getBackendOptions()
 				) {
 					$output->writeln("<error>Duplicate mount (" . $mount->getMountPoint() . ")</error>");
 					return 1;
diff --git a/apps/files_external/lib/Lib/Storage/Dropbox.php b/apps/files_external/lib/Lib/Storage/Dropbox.php
index d2ba1cca75..fad85650e9 100644
--- a/apps/files_external/lib/Lib/Storage/Dropbox.php
+++ b/apps/files_external/lib/Lib/Storage/Dropbox.php
@@ -47,7 +47,7 @@ class Dropbox extends \OC\Files\Storage\Common {
 	private $oauth;
 
 	public function __construct($params) {
-		if (isset($params['configured']) && $params['configured'] == 'true'
+		if (isset($params['configured']) && $params['configured'] === 'true'
 			&& isset($params['app_key'])
 			&& isset($params['app_secret'])
 			&& isset($params['token'])
@@ -187,12 +187,12 @@ class Dropbox extends \OC\Files\Storage\Common {
 	}
 
 	public function filetype($path) {
-		if ($path == '' || $path == '/') {
+		if ($path === '' || $path === '/') {
 			return 'dir';
 		} else {
 			$metaData = $this->getDropBoxMetaData($path);
 			if ($metaData) {
-				if ($metaData['is_dir'] == 'true') {
+				if ($metaData['is_dir'] === 'true') {
 					return 'dir';
 				} else {
 					return 'file';
@@ -203,7 +203,7 @@ class Dropbox extends \OC\Files\Storage\Common {
 	}
 
 	public function file_exists($path) {
-		if ($path == '' || $path == '/') {
+		if ($path === '' || $path === '/') {
 			return true;
 		}
 		if ($this->getDropBoxMetaData($path)) {
diff --git a/apps/files_external/lib/Lib/Storage/FTP.php b/apps/files_external/lib/Lib/Storage/FTP.php
index 22fe2090f3..1bbdfaba46 100644
--- a/apps/files_external/lib/Lib/Storage/FTP.php
+++ b/apps/files_external/lib/Lib/Storage/FTP.php
@@ -56,7 +56,7 @@ class FTP extends StreamWrapper{
 				$this->secure = false;
 			}
 			$this->root=isset($params['root'])?$params['root']:'/';
-			if ( ! $this->root || $this->root[0]!='/') {
+			if ( ! $this->root || $this->root[0]!=='/') {
 				$this->root='/'.$this->root;
 			}
 			if (substr($this->root, -1) !== '/') {
diff --git a/apps/files_external/lib/Lib/Storage/OwnCloud.php b/apps/files_external/lib/Lib/Storage/OwnCloud.php
index 9669b5f3da..34838b9891 100644
--- a/apps/files_external/lib/Lib/Storage/OwnCloud.php
+++ b/apps/files_external/lib/Lib/Storage/OwnCloud.php
@@ -40,10 +40,10 @@ class OwnCloud extends \OC\Files\Storage\DAV{
 		// (owncloud install path on host)
 		$host = $params['host'];
 		// strip protocol
-		if (substr($host, 0, 8) == "https://") {
+		if (substr($host, 0, 8) === "https://") {
 			$host = substr($host, 8);
 			$params['secure'] = true;
-		} else if (substr($host, 0, 7) == "http://") {
+		} else if (substr($host, 0, 7) === "http://") {
 			$host = substr($host, 7);
 			$params['secure'] = false;
 		}
diff --git a/apps/files_external/lib/Lib/Storage/SFTP.php b/apps/files_external/lib/Lib/Storage/SFTP.php
index a4dfea94bf..8d48955126 100644
--- a/apps/files_external/lib/Lib/Storage/SFTP.php
+++ b/apps/files_external/lib/Lib/Storage/SFTP.php
@@ -102,11 +102,11 @@ class SFTP extends \OC\Files\Storage\Common {
 		$this->root
 			= isset($params['root']) ? $this->cleanPath($params['root']) : '/';
 
-		if ($this->root[0] != '/') {
+		if ($this->root[0] !== '/') {
 			 $this->root = '/' . $this->root;
 		}
 
-		if (substr($this->root, -1, 1) != '/') {
+		if (substr($this->root, -1, 1) !== '/') {
 			$this->root .= '/';
 		}
 	}
@@ -128,7 +128,7 @@ class SFTP extends \OC\Files\Storage\Common {
 		// The SSH Host Key MUST be verified before login().
 		$currentHostKey = $this->client->getServerPublicHostKey();
 		if (array_key_exists($this->host, $hostKeys)) {
-			if ($hostKeys[$this->host] != $currentHostKey) {
+			if ($hostKeys[$this->host] !== $currentHostKey) {
 				throw new \Exception('Host public key does not match known key');
 			}
 		} else {
@@ -248,7 +248,7 @@ class SFTP extends \OC\Files\Storage\Common {
 				if ($lines) {
 					foreach ($lines as $line) {
 						$hostKeyArray = explode("::", $line, 2);
-						if (count($hostKeyArray) == 2) {
+						if (count($hostKeyArray) === 2) {
 							$hosts[] = $hostKeyArray[0];
 							$keys[] = $hostKeyArray[1];
 						}
@@ -300,7 +300,7 @@ class SFTP extends \OC\Files\Storage\Common {
 			$id = md5('sftp:' . $path);
 			$dirStream = array();
 			foreach($list as $file) {
-				if ($file != '.' && $file != '..') {
+				if ($file !== '.' && $file !== '..') {
 					$dirStream[] = $file;
 				}
 			}
@@ -316,11 +316,11 @@ class SFTP extends \OC\Files\Storage\Common {
 	public function filetype($path) {
 		try {
 			$stat = $this->getConnection()->stat($this->absPath($path));
-			if ($stat['type'] == NET_SFTP_TYPE_REGULAR) {
+			if ((int) $stat['type'] === NET_SFTP_TYPE_REGULAR) {
 				return 'file';
 			}
 
-			if ($stat['type'] == NET_SFTP_TYPE_DIRECTORY) {
+			if ((int) $stat['type'] === NET_SFTP_TYPE_DIRECTORY) {
 				return 'dir';
 			}
 		} catch (\Exception $e) {
diff --git a/apps/files_external/lib/Lib/Storage/SMB.php b/apps/files_external/lib/Lib/Storage/SMB.php
index 7afdb746a9..4af6df5d84 100644
--- a/apps/files_external/lib/Lib/Storage/SMB.php
+++ b/apps/files_external/lib/Lib/Storage/SMB.php
@@ -81,10 +81,10 @@ class SMB extends Common implements INotifyStorage {
 			$this->share = $this->server->getShare(trim($params['share'], '/'));
 
 			$this->root = isset($params['root']) ? $params['root'] : '/';
-			if (!$this->root || $this->root[0] != '/') {
+			if (!$this->root || $this->root[0] !== '/') {
 				$this->root = '/' . $this->root;
 			}
-			if (substr($this->root, -1, 1) != '/') {
+			if (substr($this->root, -1, 1) !== '/') {
 				$this->root .= '/';
 			}
 		} else {
diff --git a/apps/files_external/lib/Lib/Storage/Swift.php b/apps/files_external/lib/Lib/Storage/Swift.php
index db5b5bf6d9..57df4aa01a 100644
--- a/apps/files_external/lib/Lib/Storage/Swift.php
+++ b/apps/files_external/lib/Lib/Storage/Swift.php
@@ -435,7 +435,7 @@ class Swift extends \OC\Files\Storage\Common {
 		}
 		$metadata = array('timestamp' => $mtime);
 		if ($this->file_exists($path)) {
-			if ($this->is_dir($path) && $path != '.') {
+			if ($this->is_dir($path) && $path !== '.') {
 				$path .= '/';
 			}
 
@@ -640,7 +640,7 @@ class Swift extends \OC\Files\Storage\Common {
 		}, $cachedContent);
 		sort($cachedNames);
 		sort($content);
-		return $cachedNames != $content;
+		return $cachedNames !== $content;
 	}
 
 	/**
diff --git a/apps/files_external/templates/settings.php b/apps/files_external/templates/settings.php
index e463a0d3c3..1d703e0c1b 100644
--- a/apps/files_external/templates/settings.php
+++ b/apps/files_external/templates/settings.php
@@ -89,7 +89,7 @@
 
 <form data-can-create="<?php echo $canCreateMounts?'true':'false' ?>" id="files_external" class="section" data-encryption-enabled="<?php echo $_['encryptionEnabled']?'true': 'false'; ?>">
 	<h2 data-anchor-name="external-storage"><?php p($l->t('External storages')); ?></h2>
-	<?php if (isset($_['dependencies']) and ($_['dependencies']<>'') and $canCreateMounts) print_unescaped(''.$_['dependencies'].''); ?>
+	<?php if (isset($_['dependencies']) and ($_['dependencies'] !== '') and $canCreateMounts) print_unescaped(''.$_['dependencies'].''); ?>
 	<table id="externalStorage" class="grid" data-admin='<?php print_unescaped(json_encode($_['visibilityType'] === BackendService::VISIBILITY_ADMIN)); ?>'>
 		<thead>
 			<tr>
@@ -169,10 +169,10 @@
 
 	<?php if ($_['visibilityType'] === BackendService::VISIBILITY_ADMIN): ?>
 		<input type="checkbox" name="allowUserMounting" id="allowUserMounting" class="checkbox"
-			value="1" <?php if ($_['allowUserMounting'] == 'yes') print_unescaped(' checked="checked"'); ?> />
+			value="1" <?php if ($_['allowUserMounting'] === 'yes') print_unescaped(' checked="checked"'); ?> />
 		<label for="allowUserMounting"><?php p($l->t('Allow users to mount external storage')); ?></label> <span id="userMountingMsg" class="msg"></span>
 
-		<p id="userMountingBackends"<?php if ($_['allowUserMounting'] != 'yes'): ?> class="hidden"<?php endif; ?>>
+		<p id="userMountingBackends"<?php if ($_['allowUserMounting'] !== 'yes'): ?> class="hidden"<?php endif; ?>>
 			<?php p($l->t('Allow users to mount the following external storage')); ?><br />
 			<?php
 				$userBackends = array_filter($_['backends'], function($backend) {