feat: add StringUtil::replaceLineBreaksWithSpaces

src/StringUtil.php

@@ -105,6 +105,14 @@ public static function removeZeroWidthCharacters(string $input): string
         return \Safe\preg_replace('/[\x{200B}-\x{200D}\x{FEFF}]/u', '', $input);
     }
 
+    /** Replaces line breaks with spaces and collapses consecutive whitespace into one space. */
+    public static function replaceLineBreaksWithSpaces(string $input): string
+    {
+        $withoutLineBreaks = str_replace([self::WINDOWS_NEWLINE, "\r", "\n"], ' ', $input);
+
+        return \Safe\preg_replace('/\s+/', ' ', $withoutLineBreaks);
+    }
+
     /** Convert string that could be in different UTF encodings (UTF-8, UTF-16BE, ...) to UTF-8. */
     public static function toUTF8(string $string): string
     {

tests/StringUtilTest.php

@@ -97,6 +97,14 @@ public function testRemoveZeroWidthCharacters(): void
         );
     }
 
+    public function testReplaceLineBreaksWithSpaces(): void
+    {
+        self::assertSame(
+            'Befund: unauffällig Empfehlung: Kontrolle',
+            StringUtil::replaceLineBreaksWithSpaces("Befund:\r\nunauffällig\n\nEmpfehlung:  \rKontrolle")
+        );
+    }
+
     public function testUTF8(): void
     {
         $expectedUTF8 = 'test';