Ignore comments at the end of line

If the variable value had no quotes a comment at the end of the line was
added to the variable.
Spaces between text and comment mark will be removed too

Old:
FOO=Test # Comment -> $_ENV['FOO'] = "Test # Comment"

New:
FOO=Test # Comment -> $_ENV['FOO'] = "Test"

psalm.xml

@@ -7,7 +7,7 @@
     xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
 >
     <projectFiles>
-        <directory name="src" />
+        <directory name="." />
         <ignoreFiles>
             <directory name="vendor" />
             <directory name="test" />

src/DotEnv.php

@@ -6,6 +6,9 @@ namespace gullevek\dotEnv;
 
 class DotEnv
 {
+	/** @var string constant comment char, set to # */
+	private const COMMENT_CHAR = '#';
+
 	/**
 	 * parses .env file
 	 *
@@ -72,6 +75,11 @@ class DotEnv
 							// add removed new line back because this is a multi line
 							$value = ltrim($value, '"') . PHP_EOL;
 						}
+					} else {
+						// strip any quotes at end for unquoted single line
+						// an right hand spaces are removed too
+						$value = false !== ($pos = strpos($value, self::COMMENT_CHAR)) ?
+							rtrim(substr($value, 0, $pos)) : $value;
 					}
 					// if block is set, we strip line of slashes
 					$_ENV[$var] = $block === true ? stripslashes($value) : $value;
@@ -95,5 +103,4 @@ class DotEnv
 	}
 }
 
-
 // __END__

test/phpUnitTests/DotEnvTest.php

@@ -25,12 +25,29 @@ final class DotEnvTest extends TestCase
 			'OTHER' => 'B IS B',
 			'Complex' => 'A B \"D is F',
 			'HAS_SPACE' => 'ABC',
+			'HAS_COMMENT_QUOTES_SPACE' => 'Comment at end with quotes and space',
+			'HAS_COMMENT_QUOTES_NO_SPACE' => 'Comment at end with quotes no space',
+			'HAS_COMMENT_NO_QUOTES_SPACE' => 'Comment at end no quotes and space',
+			'HAS_COMMENT_NO_QUOTES_NO_SPACE' => 'Comment at end no quotes no space',
+			'COMMENT_IN_TEXT_QUOTES' => 'Foo bar # comment in here',
 			'FAILURE' => 'ABC',
 			'SIMPLEBOX' => 'A B  C',
 			'TITLE' => '1',
 			'FOO' => '1.2',
 			'SOME.TEST' => 'Test Var',
 			'SOME.LIVE' => 'Live Var',
+			'A_TEST1' => 'foo',
+			'A_TEST2' => '${TEST1:-bar}',
+			'A_TEST3' => '${TEST4:-bar}',
+			'A_TEST5' => 'null',
+			'A_TEST6' => '${TEST5-bar}',
+			'A_TEST7' => '${TEST6:-bar}',
+			'B_TEST1' => 'foo',
+			'B_TEST2' => '${TEST1:=bar}',
+			'B_TEST3' => '${TEST4:=bar}',
+			'B_TEST5' => 'null',
+			'B_TEST6' => '${TEST5=bar}',
+			'B_TEST7' => '${TEST6=bar}',
 			'Test' => 'A',
 			'TEST' => 'B',
 			'LINE' => "ABC\nDEF",

test/phpUnitTests/dotenv/test.env

@@ -4,12 +4,33 @@ OTHER="B IS B"
 Complex="A B \"D is F"
 # COMMENT
 HAS_SPACE= "ABC";
+# COMMENT AT END
+HAS_COMMENT_QUOTES_SPACE="Comment at end with quotes and space" # Comment QE
+HAS_COMMENT_QUOTES_NO_SPACE="Comment at end with quotes no space"# Comment QES
+HAS_COMMENT_NO_QUOTES_SPACE=Comment at end no quotes and space # Comment NQE
+HAS_COMMENT_NO_QUOTES_NO_SPACE=Comment at end no quotes no space# Comment NQES
+COMMENT_IN_TEXT_QUOTES="Foo bar # comment in here"
 FAILURE = ABC
 SIMPLEBOX= A B  C
 TITLE=1
 FOO=1.2
 SOME.TEST=Test Var
 SOME.LIVE=Live Var
+# VAR TESTS -
+A_TEST1 = foo
+A_TEST2 = ${TEST1:-bar} # TEST1 is set so the value of TEST2 = foo
+A_TEST3 = ${TEST4:-bar} # TEST4 is not set so the value of TEST3 = bar
+A_TEST5 = null
+A_TEST6 = ${TEST5-bar} # TEST5 is set but empty so the value of TEST6 = null
+A_TEST7 = ${TEST6:-bar} # TEST5 is set and empty so the value of TEST7 = bar
+# VAR TESTS =
+B_TEST1 = foo
+B_TEST2 = ${TEST1:=bar} # TEST1 is set so the value of TEST2 = foo
+B_TEST3 = ${TEST4:=bar} # TEST4 is not set so the value of TEST3 = bar and TEST4 = bar
+B_TEST5 = null
+B_TEST6 = ${TEST5=bar} # TEST5 is set but emtpy so the value of TEST6 = null
+B_TEST7 = ${TEST6=bar} # TEST5 is set and empty so the value of TEST7 = bar and TEST5 = bar
+# VAR TEST END
 Test="A"
 TEST="B"
 TEST="D"