检查xml是否存在(不工作)

时间:2023-02-01 17:28:28

i am trying to check through php if xml files exists on a url (incremental names till it fails)

我试图通过PHP检查URL上是否存在xml文件(增量名称直到失败)

why is this code not working?

为什么这段代码不起作用?

<?php

for ($i = 1; $i <= 10; $i++) {
$url = "http://thetvdb.com/api/E676DF9578EF38D7/series/78901/default/".$i."/1/en.xml";
echo $url."<br />";
$xml = simplexml_load_file($url);

if ($xml) {
echo "yay"."<br />";
} else {
echo "fail"."<br />";
die();
}
}



?>

2 个解决方案

#1


1  

Your main problem is die(). This quits all execution.

你的主要问题是死()。这会退出所有执行。

I'd also try using fopen() instead of simplexml_load_file() unless you plan on using the XML later on, eg

我还尝试使用fopen()而不是simplexml_load_file(),除非你打算稍后使用XML,例如

$handle = @fopen($url, 'r');
if ($handle === false) {
    echo 'fail<br />';
    return; // check till it fails
} else {
    echo 'yay<br />';
    fclose($handle);
}

#2


0  

You could just use curl to find out whether a file exists:

你可以使用curl来确定文件是否存在:

function does_remote_file_exist($url){
    $ch = curl_init($url);    
    curl_setopt($ch, CURLOPT_NOBODY, true);
    curl_exec($ch);
    $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);

    if ($code == 200) $status = true;
    else $status = false;

    curl_close($ch);
   return $status;
}

#1


1  

Your main problem is die(). This quits all execution.

你的主要问题是死()。这会退出所有执行。

I'd also try using fopen() instead of simplexml_load_file() unless you plan on using the XML later on, eg

我还尝试使用fopen()而不是simplexml_load_file(),除非你打算稍后使用XML,例如

$handle = @fopen($url, 'r');
if ($handle === false) {
    echo 'fail<br />';
    return; // check till it fails
} else {
    echo 'yay<br />';
    fclose($handle);
}

#2


0  

You could just use curl to find out whether a file exists:

你可以使用curl来确定文件是否存在:

function does_remote_file_exist($url){
    $ch = curl_init($url);    
    curl_setopt($ch, CURLOPT_NOBODY, true);
    curl_exec($ch);
    $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);

    if ($code == 200) $status = true;
    else $status = false;

    curl_close($ch);
   return $status;
}