if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$email = $_POST['email'] ?? '';
$message = $_POST['email'] ?? '';
$error = '';
if (trim($email) == ''){
$error = 'Введите ваш email';
} elseif (trim($message) == '') {
$error = 'Введите сообщение';
} elseif (strlen($message) < 10) {
$error = 'Сообщение должно быть более 10 символов';
}
if ($error) {
echo $error;
} else {
$subject = "=?utf-8?B?" . base64_encode("Тестовое сообщение") . "?=";
$headers = "From: $email\r\nReplay-to: $email \r\nContent-type: text/html;charset=utf-8\r\n";
mail('dferqqw@mail.ru', $subject, $message, $headers);
}
}$arr = [
[
"url" => "tut url",
"format" => "mp4, video, 720p"
],
[
"url" => "tut url",
"format" => "mp4, video, 480p"
],
[
"url" => "tut url",
"format" => "mp4, video, 360p"
]
];
$arr = array_filter($arr, function($a){
return $a['format'] == "mp4, video, 720p" || $a['format'] == "mp4, video, 480p";
});
var_dump($arr);function formatNumber(int $int): String
{
$k = (int) log($int, 1000);
$float = round($int / pow(1000, $k), 1);
$letters = ['К', 'М', 'Млрд'];
return $float . ($letters[--$k] ?? '');
}
// Примеры использования:
echo formatNumber(7); // 7
echo formatNumber(78); // 78
echo formatNumber(789); // 789
echo formatNumber(7899); // 7.9К
echo formatNumber(78991); // 79К
echo formatNumber(789919); // 789.9К
echo formatNumber(7899191); // 7.9М
echo formatNumber(78991911); // 79М
echo formatNumber(789919119); // 789.9М
echo formatNumber(7899191191); // 7.9Млрд
echo formatNumber(78991911910); // 79МлрдЕсть ли спобоб без цикла проверить вхождение каждого элемента массива в строку?Такого способа нет, т.к. любая функция для обработки массива "под капотом" реализует цикл.
<?php
session_start();
require('connect.php');
if (isset($_POST['username']) and isset($_POST['password'])) {
$username = $_POST['username'];
$password = $_POST['password'];
$query = "SELECT * FROM users WHERE username='$username' and password='$password'";
$query2 = "SELECT * FROM users WHERE role = 'admin'";
$result = mysqli_query($connection, $query) or die(mysqli_error($connection));
$result2 = mysqli_query($connection, $query2) or die(mysqli_error($connection));
$count = mysqli_num_rows($result);
$role = [];
while ($row = mysqli_fetch_array($result2)) {
$role[] = $row['username'];
}
if (in_array($username, $role)) {
header('Location:admin.php');
$_SESSION['t'] = "Вы вошли под админом ";
} else {
header('Location: index.html');
echo "Вы вошли под пользователем ";
}
if ($count == 1) {
$_SESSION['username'] = $username;
} else {
$fsmsg = "Ошибка";
}
}
if (isset($_SESSION['username'])) {
$username = $_SESSION['username'];
echo "Hello," . $username . "";
echo "<a href='logout.php' class='btn btn-lg btn-primary'>Выйти</a>";
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<link rel="stylesheet" href="style.css">
<title>Авторизация</title>
</head>
<body>
<div class="container">
<form class="form-signin" method="POST">
<h2>Авторизация</h2>
<input type="text" name="username" class="form-control" placeholder="Username" required>
<input type="password" name="password" class="form-control" placeholder="Password" required>
<button class="btn btn-lg btn-primary btn-block" type="submit">Авторизоваться</button>
<a href="index.php" class="btn btn-lg btn-primary btn-block">Зарегистрироваться</a>
</form>
</div>
</body>
</html><?php
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$dirname = trim($_POST['dir'] ?? '');
if ($dirname && mkdir($dirname)) {
echo "Директория создана";
} else {
echo "Не удалось создать директорию";
}
}
?><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<form action="index.php" method="post">
<input type="text" name="dir">
<input type="submit">
</form>
</body>
</html>$str = 'Какой-то текст и ещё не много текста.';
echo findReplaceSymbol($str);
function findReplaceSymbol($str, $repl = '-'): string
{
return preg_replace('~\s+~', $repl, $str);
}$std = function()use(&$rand): stdClass
{
return (object) ['rand' => $rand ?? $rand = rand(1, 5)];
};
var_dump( $std()->rand );
var_dump( $std()->rand );$std = (object) ['rand' => rand(1, 5)];
var_dump( $std->rand );
var_dump( $std->rand );$filename = 'test.txt';
$search = 43343443;
$h = @fopen($filename, 'r') or die("Файл '$filename' не найден!");
while (! feof($h)) {
$line = trim(fgets($h));
if ($line == $search) {
echo $line;
}
}
fclose($h);$str = 'https://example.ru/example/ https://example1.ru/example1 https://example2.ru/example2';
$url = [];
! preg_match_all('~https?://\K[^/]+~', $str, $url) ?: $url = $url[0];
var_dump($url);$str = '<body>Hello<br><br>FFDGJHIJHFMVDFF.<br>Grtrvfwrwerwerffdsf.<br><br>Active? <br>=> yes <=<br><br <br=""><br>Active? <br>=> no <=<br><br>Lalalalal.<br><br>
</body>';
$arr = preg_match_all('~=>\h\K.+?(?=\h<=)~', $str, $arr) ? $arr[0] : [];
var_dump($arr);
/*
array(2) {
[0]=> string(3) "yes"
[1]=> string(2) "no"
}
*/