diff --git a/ExecutableFinder.php b/ExecutableFinder.php
index 5914b4cd..eb8f0629 100644
--- a/ExecutableFinder.php
+++ b/ExecutableFinder.php
@@ -48,8 +48,8 @@ public function addSuffix(string $suffix)
      */
     public function find(string $name, string $default = null, array $extraDirs = [])
     {
-        if (ini_get('open_basedir')) {
-            $searchPath = array_merge(explode(\PATH_SEPARATOR, ini_get('open_basedir')), $extraDirs);
+        if (\ini_get('open_basedir')) {
+            $searchPath = array_merge(explode(\PATH_SEPARATOR, \ini_get('open_basedir')), $extraDirs);
             $dirs = [];
             foreach ($searchPath as $path) {
                 // Silencing against https://bugs.php.net/69240
diff --git a/Pipes/AbstractPipes.php b/Pipes/AbstractPipes.php
index 01051005..656dc032 100644
--- a/Pipes/AbstractPipes.php
+++ b/Pipes/AbstractPipes.php
@@ -104,7 +104,7 @@ protected function write(): ?array
                 stream_set_blocking($input, 0);
             } elseif (!isset($this->inputBuffer[0])) {
                 if (!\is_string($input)) {
-                    if (!is_scalar($input)) {
+                    if (!\is_scalar($input)) {
                         throw new InvalidArgumentException(sprintf('"%s" yielded a value of type "%s", but only scalars and stream resources are supported.', get_debug_type($this->input), get_debug_type($input)));
                     }
                     $input = (string) $input;
diff --git a/ProcessUtils.php b/ProcessUtils.php
index 6cc7a610..2a7aff71 100644
--- a/ProcessUtils.php
+++ b/ProcessUtils.php
@@ -48,7 +48,7 @@ public static function validateInput(string $caller, $input)
             if (\is_string($input)) {
                 return $input;
             }
-            if (is_scalar($input)) {
+            if (\is_scalar($input)) {
                 return (string) $input;
             }
             if ($input instanceof Process) {
diff --git a/Tests/ExecutableFinderTest.php b/Tests/ExecutableFinderTest.php
index d056841f..5c63cf0f 100644
--- a/Tests/ExecutableFinderTest.php
+++ b/Tests/ExecutableFinderTest.php
@@ -37,7 +37,7 @@ private function setPath($path)
 
     public function testFind()
     {
-        if (ini_get('open_basedir')) {
+        if (\ini_get('open_basedir')) {
             $this->markTestSkipped('Cannot test when open_basedir is set');
         }
 
@@ -51,7 +51,7 @@ public function testFind()
 
     public function testFindWithDefault()
     {
-        if (ini_get('open_basedir')) {
+        if (\ini_get('open_basedir')) {
             $this->markTestSkipped('Cannot test when open_basedir is set');
         }
 
@@ -67,7 +67,7 @@ public function testFindWithDefault()
 
     public function testFindWithNullAsDefault()
     {
-        if (ini_get('open_basedir')) {
+        if (\ini_get('open_basedir')) {
             $this->markTestSkipped('Cannot test when open_basedir is set');
         }
 
@@ -82,7 +82,7 @@ public function testFindWithNullAsDefault()
 
     public function testFindWithExtraDirs()
     {
-        if (ini_get('open_basedir')) {
+        if (\ini_get('open_basedir')) {
             $this->markTestSkipped('Cannot test when open_basedir is set');
         }
 
@@ -105,7 +105,7 @@ public function testFindWithOpenBaseDir()
             $this->markTestSkipped('Cannot run test on windows');
         }
 
-        if (ini_get('open_basedir')) {
+        if (\ini_get('open_basedir')) {
             $this->markTestSkipped('Cannot test when open_basedir is set');
         }
 
@@ -122,7 +122,7 @@ public function testFindWithOpenBaseDir()
      */
     public function testFindProcessInOpenBasedir()
     {
-        if (ini_get('open_basedir')) {
+        if (\ini_get('open_basedir')) {
             $this->markTestSkipped('Cannot test when open_basedir is set');
         }
         if ('\\' === \DIRECTORY_SEPARATOR) {
@@ -140,7 +140,7 @@ public function testFindProcessInOpenBasedir()
 
     public function testFindBatchExecutableOnWindows()
     {
-        if (ini_get('open_basedir')) {
+        if (\ini_get('open_basedir')) {
             $this->markTestSkipped('Cannot test when open_basedir is set');
         }
         if ('\\' !== \DIRECTORY_SEPARATOR) {
diff --git a/Tests/ProcessTest.php b/Tests/ProcessTest.php
index 4cf2e5d3..1646bcb9 100644
--- a/Tests/ProcessTest.php
+++ b/Tests/ProcessTest.php
@@ -1133,7 +1133,7 @@ public function testTermSignalTerminatesProcessCleanly()
     public function responsesCodeProvider()
     {
         return [
-            //expected output / getter / code to execute
+            // expected output / getter / code to execute
             // [1,'getExitCode','exit(1);'],
             // [true,'isSuccessful','exit();'],
             ['output', 'getOutput', 'echo \'output\';'],