libphonenumber\NumberFormat::setFormat PHP Method

    public function setFormat($value)
    {
        $this->format = $value;
        return $this;
    }

 public function testFormatByPattern()
 {
     $newNumFormat = new NumberFormat();
     $newNumFormat->setPattern("(\\d{3})(\\d{3})(\\d{4})");
     $newNumFormat->setFormat("(\$1) \$2-\$3");
     $newNumberFormats = array();
     $newNumberFormats[] = $newNumFormat;
     $this->assertEquals("(650) 253-0000", $this->phoneUtil->formatByPattern(self::$usNumber, PhoneNumberFormat::NATIONAL, $newNumberFormats));
     $this->assertEquals("+1 (650) 253-0000", $this->phoneUtil->formatByPattern(self::$usNumber, PhoneNumberFormat::INTERNATIONAL, $newNumberFormats));
     $this->assertEquals("tel:+1-650-253-0000", $this->phoneUtil->formatByPattern(self::$usNumber, PhoneNumberFormat::RFC3966, $newNumberFormats));
     // $NP is set to '1' for the US. Here we check that for other NANPA countries the US rules are
     // followed.
     $newNumFormat->setNationalPrefixFormattingRule('$NP ($FG)');
     $newNumFormat->setFormat("\$1 \$2-\$3");
     $this->assertEquals("1 (242) 365-1234", $this->phoneUtil->formatByPattern(self::$bsNumber, PhoneNumberFormat::NATIONAL, $newNumberFormats));
     $this->assertEquals("+1 242 365-1234", $this->phoneUtil->formatByPattern(self::$bsNumber, PhoneNumberFormat::INTERNATIONAL, $newNumberFormats));
     $newNumFormat->setPattern("(\\d{2})(\\d{5})(\\d{3})");
     $newNumFormat->setFormat("\$1-\$2 \$3");
     $newNumberFormats[0] = $newNumFormat;
     $this->assertEquals("02-36618 300", $this->phoneUtil->formatByPattern(self::$itNumber, PhoneNumberFormat::NATIONAL, $newNumberFormats));
     $this->assertEquals("+39 02-36618 300", $this->phoneUtil->formatByPattern(self::$itNumber, PhoneNumberFormat::INTERNATIONAL, $newNumberFormats));
     $newNumFormat->setNationalPrefixFormattingRule('$NP$FG');
     $newNumFormat->setPattern("(\\d{2})(\\d{4})(\\d{4})");
     $newNumFormat->setFormat("\$1 \$2 \$3");
     $newNumberFormats[0] = $newNumFormat;
     $this->assertEquals("020 7031 3000", $this->phoneUtil->formatByPattern(self::$gbNumber, PhoneNumberFormat::NATIONAL, $newNumberFormats));
     $newNumFormat->setNationalPrefixFormattingRule('($NP$FG)');
     $this->assertEquals("(020) 7031 3000", $this->phoneUtil->formatByPattern(self::$gbNumber, PhoneNumberFormat::NATIONAL, $newNumberFormats));
     $newNumFormat->setNationalPrefixFormattingRule("");
     $this->assertEquals("20 7031 3000", $this->phoneUtil->formatByPattern(self::$gbNumber, PhoneNumberFormat::NATIONAL, $newNumberFormats));
     $this->assertEquals("+44 20 7031 3000", $this->phoneUtil->formatByPattern(self::$gbNumber, PhoneNumberFormat::INTERNATIONAL, $newNumberFormats));
 }