<?php
$weather = "";
$error = "";
// if($_GET["city"]){
// better way -->
if(array_key_exists('city',$_GET))
{
$city = str_replace(' ','',$_GET['city']);
$file_headers = @get_headers("https://www.weather-forecast.com/locations/".$city."/forecasts/latest");
if($file_headers[0] == 'HTTP/1.1 404 Not Found'){
$error = "City couldn't be found";
}
else{
$forcastPage = file_get_contents("https://www.weather-forecast.com/locations/".$city."/forecasts/latest");
$pageArray = explode('3 days)</div><p class="b-forecast__table-description-content"><span class="phrase">',$forcastPage);
if(sizeof($pageArray) >1){
$secondPageArray = explode('</span></p></td>',$pageArray[1]);
if(sizeof($secondPageArray)>1){
$weather = $secondPageArray[0];
}
else{
$error = "City couldn't be found";
}
}
else{
$error = "City couldn't be found";
}
}
}
?>
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Weather Scraper</title>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-KK94CHFLLe+nY2dmCWGMq91rCGa5gtU4mk92HdvYe+M/SXH301p5ILy+dN9+nJOZ" crossorigin="anonymous">
<style>
html{
background: url(sunset.avif) no-repeat center center fixed;
background-size: cover;
}
body{
background:none;
}
.container{
text-align:center;
margin-top: 100px;
width:450px;
}
input{
margin:20px 0;
}
#weather{
margin-top: 15px;
}
</style>
</head>
<body>
<div class="container">
<h1>What's the weather?</h1>
<form>
<div class="mb-3">
<label for="city" class="form-label">Enter the name of a city</label>
<input type="text" name="city" class="form-control" id="city" placeholder="Eg. London , Tokyo"
value = "<?php
if(array_key_exists('city',$_GET))
{
echo $_GET["city"];
}
?>">
</div>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
<div id="weather">
<?php
if($weather){
echo '<div class="alert alert-success" role="alert">
'.$weather.'
</div>';
}
else if($error){
echo '<div class="alert alert-danger" role="alert">
'.$error.'
</div>';
}
?>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-ENjdO4Dr2bkBIFxQpeoTz1HIcje39Wm4jDKdf19U8gI4ddQ3GYNS7NTKfAdVQSZe" crossorigin="anonymous"></script>
</body>
</html>
当我在我的本地服务器上运行这段代码时，它运行没有任何错误并显示了输出。但是我在 000webhost 上托管了网站，网站链接：https://overprotective-gard.000webhostapp.com/?city=china
出现以下错误：
警告：file_get_contents（）：SSL 操作失败，代码为 1。OpenSSL 错误消息：错误：14090086：SSL 例程：ssl3_get_server_certificate：证书验证在 /storage/ssd4/367/20650367/public_html/index.php 上失败17
行警告：file_get_contents()：无法在/storage/ssd4/367/20650367/public_html/index.php 在线17
中启用加密警告：file_get_contents（https://www.weather-forecast.com/locations/london/forecasts/latest）：无法打开流：操作在/storage/ssd4/367/20650367/public_html/中失败index.php 上线17
有人可以查看代码并帮助我删除错误吗？