<?php
function phoneNumberCheck($mobileNumber){
    $regexp='/(^ ?8|^\+ ?7)([-() ]*\d){10}$/';
    $match = [];
    if (preg_match($regexp, $mobileNumber, $match)) {
        echo "+ Номер верный '{$match[0]}'\n";
    } else {
        echo "- Ничего не найдено\n";
    }
}
 
$correctNumbers = [
    '84951234567',
    '+74951234567',
    '8-495-1-234-567',
    '8(911)1234567',
    '8 (911) 1234567',
    ' 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'
];
 
$incorrectNumbers = [ '02', '84951234567 позвать люсю', '849512345', '849512345678',
    '8 (409) 123-123-123', '7900123467', '5005005001', '8888-8888-88',
    '84951a234567', '8495123456a','8((((((((((', '8495кря4567','84а97а75п67',
    '849512s45678',
    '+1 234 5678901', /* неверный код страны */
    '+8 234 5678901', /* либо 8 либо +7 */
    '7 234 5678901' /* нет + */];
 
echo "------------------------------------------- \n ";
 
 
$arCount=count($correctNumbers);
for ($i=0;$i<$arCount;$i++){
    echo " ".phoneNumberCheck($correctNumbers[$i])." \n ";
}
 
$inarcount=count($incorrectNumbers);
echo "------------------------------------------- \n ";
for ($i=0;$i<$inarcount;$i++){
    echo " ".phoneNumberCheck($incorrectNumbers[$i])." \n ";
}

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