<?php
error_reporting(-1);
$input1 = "8(911)-506 56 56";
$input2 = "8-911-50-656-56";
$input3 = "89115065656";
$input4 = "02";
$input5 = "89115065656 позвать Люду";
// your code goes here
function IsPhone($input)
{
	$regexp = '/(^\\+)?8(\\(| |\\-)?911(\\)| |\\-)?[0-9]{7}[^a-zA-Zа-яёА-ЯЁ]+/';
	if (preg_match($regexp, $input)){
		echo "Это правильный набор\n";
	} else {
		echo "Это неправильный ответ\n";
	}
}
IsPhone($input1);

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