PHP Cli Request Loop

request-loop.php

<?php

# FileName should be "call", without extension. A calling in cli like "php call google.com"

enum Color: string
{
	case Black     = "\033[30m";
	case Red       = "\033[31m";
	case Green     = "\033[32m";
	case Orange    = "\033[33m";
	case Blue      = "\033[34m";
	case Magenta   = "\033[35m";
	case Cyan      = "\033[36m";
	case LightGray = "\033[37m";
	case Default   = "\033[39m";

	case BBlack     = "\033[40m";
	case BRed       = "\033[41m";
	case BGreen     = "\033[42m";
	case BOrange    = "\033[43m";
	case BBlue      = "\033[44m";
	case BMagenta   = "\033[45m";
	case BCyan      = "\033[46m";
	case BLightGray = "\033[47m";
	case BDefault   = "\033[49m";

	case ADefault   = "\033[39m\033[49m";
}

$arguments = $_SERVER['argv'];
$url       = $arguments[1];
$interval  = 180;

if (substr($url, 0, 8) !== 'https://')
	$url = "https://$url";

echo "Requesting each $interval seconds to $url", PHP_EOL;

while (true) {
	$context = stream_context_create(['http' => ['ignore_errors' => true]]);
	$response = file_get_contents($url, false, $context);

	preg_match('{HTTP\/\S*\s(\d{3})}', $http_response_header[0], $match);
	$status = (string) $match[1];

	echo match ($status[0]) {
		'2'      => Color::Green->value,
		'4', '5' => Color::Orange->value,
		default  => Color::Red->value,
	},
	date('H:i:s'), ' Returned status ', $status,
	Color::ADefault->value, PHP_EOL;

	if ($status == 201)
		continue;

	sleep($interval);
}