<?php
 
 
$numbers = [ 
  '84951234567',  '+74951234567', '8-495-1-234-567', 
  ' 8 (8122) 56-56-56', '8-911-1234567', '8 (911) 12 345 67', 
  '8-911 12 345 67', '8 (911) - 123 - 45 - 67', '+ 7 999 123 4567', 
  '8 ( 999 ) 1234567', '8 999 123 4567',
  '02', '84951234567 позвать люсю', '849512345', '849512345678', 
  '8 (409) 123-123-123', '7900123467', '5005005001', '8888-8888-88',
  '84951a234567', '8495123456a', 
  '+1 234 5678901', /* неверный код страны */
  '+8 234 5678901', /* либо 8 либо +7 */
  '7 234 5678901' /* нет + */
];
 
 
$regexp = "/^\\s?([+]\s*[7]|8)\\W*[0-9]\\W*[0-9]\\W*[0-9]\\W*[0-9]\\W*[0-9]\\W*[0-9]\\W*[0-9]\\W*[0-9]\\W*[0-9]\\W*[0-9]$";
 
$regexpRepl = "/^\\([+]7)\\d{10}$";
 
$CorrNumb = array();
 
if(preg_match($regexp, $number, $CorrNumb)) {
		var_dump($CorrNumb);
 
}
 
		$lenght = count($CorrNumb);
        echo $lenght;
 
 
 
 
?>

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