[英]Loop through array values
我有一個小問題:
我需要重復一遍
do {
$QUERY = "/member?id=".$counter."&action=refresh";
$URL = $HTTP.$HTTPUSER.":".$HTTPPASS."@".$HTTPSERVER.":".$HTTPPORT.$QUERY;
$xml = file_get_contents($URL);
$data = new SimpleXMLElement($xml);
$test_ip = (string)$data->c1;
$dnsip = explode('<br>', $test_ip);
$ext_ip = strip_tags($dnsip[1]);
if ($ext_ip != "127.0.0.1" && $ext_ip != "localhost") {
$dns = strip_tags($dnsip[0]);
echo "$dns $ext_ip <br>";
}
$counter +=1;
} while (!empty($data));
數組中有多少次值,所以我嘗試添加
$ports = array('2001','2002','2003');
foreach ($ports as $HTTPPORT) {
echo "$HTTPPORT<br>";
$counter = 1;
do {
$QUERY = "/member?id=".$counter."&action=refresh";
$URL = $HTTP.$HTTPUSER.":".$HTTPPASS."@".$HTTPSERVER.":".$HTTPPORT.$QUERY;
$xml = file_get_contents($URL);
$data = new SimpleXMLElement($xml);
$test_ip = (string)$data->c1;
$dnsip = explode('<br>', $test_ip);
$ext_ip = strip_tags($dnsip[1]);
if ($ext_ip != "127.0.0.1" && $ext_ip != "localhost") {
$dns = strip_tags($dnsip[0]);
echo "$dns $ext_ip <br>";
}
$counter +=1;
} while (!empty($data)); }
問題在於它只使用第一個端口號(2001)執行腳本,而我找不到原因。
有任何想法嗎?
您可能在“ do .. while”循環中遇到一個異常,這會引起麻煩。
我添加了一個“ try .. catch”塊和一些“ echo”語句,以確保它現在始終循環所有“端口”。 更改了'catch'以將$ data標記為空,然后繼續。
這是經過測試的代碼:
<?php
$ports = array('2001','2002','2003');
$counter = 0; // total count of documents
foreach($ports as $HTTPPORT) {
echo $HTTPPORT, ' start of process port loop<br/>';
try { // catch any error -- report it and loop round again
do {
$QUERY = "/member?id=".$counter."&action=refresh";
$URL = ''; // $HTTP.$HTTPUSER.":".$HTTPPASS."@".$HTTPSERVER.":".$HTTPPORT.$QUERY;
try {
$xml = file_get_contents($URL);
$data = new SimpleXMLElement($xml);
}
catch (Exception $e) { // ignore any errors
echo 'SimpleXMLElement : oops :', $e->getMessage(), '<br />';
$data = ''; // mark as empty
}
if (!empty($data)) { // process data
$test_ip = (string)$data->c1;
$dnsip = explode('<br>', $test_ip);
$ext_ip = strip_tags($dnsip[1]);
if ($ext_ip != "127.0.0.1" && $ext_ip != "localhost") {
$dns = strip_tags($dnsip[0]);
echo "$dns $ext_ip <br>";
}
}
$counter +=1;
} while (!empty($data));
} // end of try to get and process a document...
catch (Exception $e) { // catch all errors for now
echo 'Processing List of Ports: oops! :', $e->getMessage(), '<br />';
}
} // end of foreach port
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