diff --git a/commands.php b/commands.php
index 7effa5d..908d1f3 100644
--- a/commands.php
+++ b/commands.php
@@ -11,4 +11,4 @@
  *
  * @copyright 2019 Lotfio Lakehal
  */
-$conso->command('command', Conso\Commands\Command::class);
\ No newline at end of file
+$conso->command('command', Conso\Commands\Command::class);
diff --git a/src/Conso/CommandInvoker.php b/src/Conso/CommandInvoker.php
index 048beb4..59fbf97 100644
--- a/src/Conso/CommandInvoker.php
+++ b/src/Conso/CommandInvoker.php
@@ -123,7 +123,7 @@ public function invoke(?array $command)
         $commands = $this->app->getCommands(); // defined commands
 
         // disable ansi
-        if ($this->input->flag('--no-ansi') !== false ) {
+        if ($this->input->flag('--no-ansi') !== false) {
             $this->output->disableAnsi();
         }
 
diff --git a/src/Conso/CommandLinker.php b/src/Conso/CommandLinker.php
index 1b50bab..c3c8ef3 100644
--- a/src/Conso/CommandLinker.php
+++ b/src/Conso/CommandLinker.php
@@ -59,10 +59,10 @@ public function __construct(InputInterface $input, OutputInterface $output)
      */
     public function link(array &$commands): ?array
     {
-        $command    = $this->input->command();
+        $command = $this->input->command();
         $subCommand = $this->input->subCommand();
-        $options    = $this->input->options();
-        $flags      = $this->input->flags();
+        $options = $this->input->options();
+        $flags = $this->input->flags();
 
         // if command is a class
         for ($i = 0; $i < count($commands); $i++) {
@@ -77,7 +77,6 @@ public function link(array &$commands): ?array
 
         for ($i = 0; $i < count($commands); $i++) {
             if ($command == $commands[$i]['name'] || in_array($command, $commands[$i]['aliases'])) {
-
                 $this->linkSubCommand($subCommand, $commands[$i]['sub']);
 
                 $this->linkOptions($options);
@@ -108,16 +107,19 @@ private function linkSubCommand(?string $subCommand, array $sub): void
     }
 
     /**
-     * link options
+     * link options.
      *
      * @param array $options
+     *
      * @return void
      */
     public function linkOptions(array $options)
     {
-        foreach($options as $option)
-            if(!preg_match('/^[A-z0-9]+$/', $option))
-                throw new InputException("oly alpha-numeric characters are allowed for options ([A-z0-9]+)");
+        foreach ($options as $option) {
+            if (!preg_match('/^[A-z0-9]+$/', $option)) {
+                throw new InputException('oly alpha-numeric characters are allowed for options ([A-z0-9]+)');
+            }
+        }
     }
 
     /**
diff --git a/src/Conso/Conso.php b/src/Conso/Conso.php
index 173afc9..8309633 100644
--- a/src/Conso/Conso.php
+++ b/src/Conso/Conso.php
@@ -94,17 +94,16 @@ public function command(string $name, $action): CommandsTable
     public function run(int $env = 0)
     {
         // build in commands
-        if (!$this->output->isTestMode())
-                $this->loadBuildInCommands();
+        if (!$this->output->isTestMode()) {
+            $this->loadBuildInCommands();
+        }
 
         try {
             // pass table defined commands & match
             $this->invokedCommand = $this->linker->link($this->getCommands());
 
             return $this->invoker->invoke($this->invokedCommand);
-
         } catch (\Exception $e) {
-
             if ($this->output->isTestMode()) {  // is test mode
 
                 throw new \Exception($e);
diff --git a/src/Conso/Input.php b/src/Conso/Input.php
index 0f79d1d..5c86021 100644
--- a/src/Conso/Input.php
+++ b/src/Conso/Input.php
@@ -110,7 +110,7 @@ private function extract(array $argv): void
             // if command & sub command
             if (preg_match('/^([A-z]+)(\:)([A-z]+)$/', $argv[0])) {
                 $command = explode(':', $argv[0]);
-                $this->command    = $command[0] ?? null;
+                $this->command = $command[0] ?? null;
                 $this->subCommand = $command[1] ?? null;
             }
 
@@ -118,20 +118,21 @@ private function extract(array $argv): void
             unset($argv[0]);
         }
 
-        $flags         = $this->captureFlags($argv);
+        $flags = $this->captureFlags($argv);
 
-        $this->flags   = $this->extractFlags($flags);
+        $this->flags = $this->extractFlags($flags);
 
         $this->options = array_values(array_diff($argv, $flags));
     }
 
     /**
-     * extract flags method
+     * extract flags method.
      *
      * @param array $argv
+     *
      * @return array
      */
-    private function captureFlags(array $argv) : array
+    private function captureFlags(array $argv): array
     {
         $flags = array_filter($argv, function ($elem) {
             return preg_match('/^[\-]{1,2}[A-z]+((\-\w+)|(\=.*))?$/', $elem);
@@ -141,19 +142,18 @@ private function captureFlags(array $argv) : array
     }
 
     /**
-     * extract flags
+     * extract flags.
+     *
+     * @param array $flags
      *
-     * @param  array $flags
      * @return array
      */
-    private function extractFlags(array $flags) : array
+    private function extractFlags(array $flags): array
     {
         $flagsWithValues = [];
 
-        foreach($flags as $flag)
-        {
-            if(strpos($flag, '=') !== FALSE)
-            {
+        foreach ($flags as $flag) {
+            if (strpos($flag, '=') !== false) {
                 $exp = explode('=', $flag);
                 $flagsWithValues[$exp[0]] = $exp[1];
                 continue;
@@ -250,13 +250,14 @@ public function reservedFlags()
     }
 
     /**
-     * read line method
+     * read line method.
      *
      * @param string $line
+     *
      * @return void
      */
     public function readLine(string $line)
     {
-        return readLine($line);
+        return readline($line);
     }
 }