normalize() публичный статический Метод

For ALPHA/VANITY numbers: Letters are converted to their numeric representation on a telephone keypad. The keypad used here is the one defined in ITU Recommendation E.161. This is only done if there are 3 or more letters in the number, to lessen the risk that such letters are typos. For other numbers: Wide-ascii digits are converted to normal ASCII (European) digits. Arabic-Indic numerals are converted to European numerals. Spurious alpha characters are stripped.
public static normalize ( string &$number ) : string
$number string a string of characters representing a phone number.
Результат string the normalized string version of the phone number.
Документация по классу PhoneNumberUtil
Пример #1
0
 public function testNormaliseOtherDigits()
 {
     $inputNumber = "２" . "5٥";
     $expectedOutput = "255";
     $this->assertEquals($expectedOutput, $this->phoneUtil->normalize($inputNumber), "Conversion did not correctly replace non-latin digits");
     // Eastern-Arabic digits.
     $inputNumber = "۵" . "2۰";
     $expectedOutput = "520";
     $this->assertEquals($expectedOutput, $this->phoneUtil->normalize($inputNumber), "Conversion did not correctly replace non-latin digits");
 }