Question

我有表格，我用它来回复某些货币...

基本上，我正在使用file_get_contents（）函数，如果我失去连接，我会收到此错误：

php_network_getaddresses：getaddrinfo failed：没有这样的主机。在

是否有可能回显一些自定义错误？当用户在尝试提交表单时失去连接时..

我的PHP代码：

<?php error_reporting (E_ALL ^ E_NOTICE); ?>

<?php
$params = $_REQUEST;
//print_R($params);die('fff');
if(isset($params) && isset($params['amount']) && isset($params['from']) && isset($params['from'])) {
    currencyConverter($params['from'], $params['to'], $params['amount']);
}

function currencyConverter($from_currency,$to_currency,$amount) {
    $amount = urlencode($amount);
    $from_currency = urlencode($from_currency);
    $to_currency = urlencode($to_currency);
    $get = file_get_contents("https://finance.google.com/finance/converter?a=$amount&from=$from_currency&to=$to_currency");
    $get = explode("<span class=bld>",$get);
    $get = explode("</span>",$get[1]);
    $converted_currency = preg_replace("/[^0-9\.]/", null, $get[0]);

    echo $converted_currency;

    if($from_currency == $to_currency){


      echo "try again";
    }


}

Answer 1

你应该抓住file_get_contents函数的错误。失败时返回false。这是它的文档。

http://php.net/manual/en/function.file-get-contents.php

$get = @file_get_contents("https://finance.google.com/finance/converter?a=$amount&from=$from_currency&to=$to_currency");
if(!$get){
   echo "My custom error";
}

连接丢失时显示错误消息

1 个答案: