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May 26, 2022 04:24
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Normalize phone number inputs from user to E.164 format.
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<?php | |
/** | |
* @param string|null $number | |
* @return string|null | |
*/ | |
function normalize_to_e164(?string $number): ?string | |
{ | |
if (empty($number)) { | |
return null; | |
} | |
$number = preg_replace('/\D/', '', $number); | |
if (strpos($number, '00') === 0) { | |
$number = substr_replace($number, '+', 0, 2); | |
} | |
$number = ltrim($number, '0'); | |
if ($number[0] !== '+') { | |
$number = '+91'.$number; | |
} | |
if (strlen($number) === 15 && strpos($number, '+9191') === 0) { | |
$number = substr_replace($number, '', 2, 2); | |
} | |
return $number; | |
} |
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