PhpOffice\PhpPresentation\Shape\RichText\Paragraph::getPlainText PHP Метод

    public function getPlainText()
    {
        // Return value
        $returnValue = '';
        // Loop trough all \PhpOffice\PhpPresentation\Shape\RichText\TextElementInterface
        foreach ($this->richTextElements as $text) {
            if ($text instanceof TextElementInterface) {
                $returnValue .= $text->getText();
            }
        }
        // Return
        return $returnValue;
    }

 /**
  * Test text methods
  */
 public function testText()
 {
     $object = new Paragraph();
     $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\RichText\\Paragraph', $object->addText(new TextElement()));
     $this->assertcount(1, $object->getRichTextElements());
     $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\RichText\\TextElement', $object->createText());
     $this->assertcount(2, $object->getRichTextElements());
     $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\RichText\\TextElement', $object->createText('AAA'));
     $this->assertcount(3, $object->getRichTextElements());
     $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\RichText\\BreakElement', $object->createBreak());
     $this->assertcount(4, $object->getRichTextElements());
     $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\RichText\\Run', $object->createTextRun());
     $this->assertcount(5, $object->getRichTextElements());
     $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\RichText\\Run', $object->createTextRun('BBB'));
     $this->assertcount(6, $object->getRichTextElements());
     $this->assertEquals('AAA' . "\r\n" . 'BBB', $object->getPlainText());
     $this->assertEquals('AAA' . "\r\n" . 'BBB', (string) $object);
 }