Question

我有一个PHP脚本，它从URL中获取IP地址列表，预先添加并附加一些文本和换行符。这很有效，除了源在末尾有一个空行，这使得一行没有IP地址。我需要脚本忽略或删除该行，以便不生成它。

<?php
$ipPage = file_get_contents('https://my.pingdom.com/probes/ipv4');
$ipList = explode("\n", $ipPage);
echo "/ip firewall address-list\n";
echo "remove [/ip firewall address-list find list=Pingdom]\n";
foreach($ipList as $ip) {
    echo "add address=" . $ip . " list=Pingdom\n";
  }
?>

您可以在https://novaram.dk/mikrotik.php

看到结果和空的最后一行

Answer 1

或者，使用implode()加入他们。

<?php
$ipPage = file_get_contents('https://my.pingdom.com/probes/ipv4');
$ipList = explode("\n", $ipPage);
echo "/ip firewall address-list\n";
echo "remove [/ip firewall address-list find list=Pingdom]\n";
foreach($ipList as $ip) {
    $ips[] = "add address={$ip} list=Pingdom";
}

echo implode("\n", $ips);
?>

Answer 2

这个

<?php
$ipPage = file_get_contents('https://my.pingdom.com/probes/ipv4');
$ipList = preg_split ( "\n", $ipPage , -1 ,PREG_SPLIT_NO_EMPTY );
echo "/ip firewall address-list\n";
echo "remove [/ip firewall address-list find list=Pingdom]\n";
foreach($ipList as $ip) {
    echo "add address=" . $ip . " list=Pingdom\n";
  }
?>

或者这应该有用

<?php
$ipPage = file_get_contents('https://my.pingdom.com/probes/ipv4');
$ipList = explode("\n", $ipPage);
echo "/ip firewall address-list\n";
echo "remove [/ip firewall address-list find list=Pingdom]\n";
foreach($ipList as $ip) {
    if(strlen(trim($ip)) != 0 )
        echo "add address=" . $ip . " list=Pingdom\n";
  }
?>

Answer 3

感谢您的所有答案，我完成了以下工作：

<?php
$ipPage = file_get_contents('https://my.pingdom.com/probes/ipv4');
$ipPage = str_replace("'","",$ipPage);
$ipList = explode("\n", $ipPage);
echo "/ip firewall address-list\n";
echo "remove [/ip firewall address-list find list=Pingdom]\n";
foreach($ipList as $ip) {
    if(strlen($ip) > 0) {
        echo "add address=" . $ip . " list=Pingdom\n";
    }
}
?>

...但是我有一个类似的脚本，但是源代码向我发送了一个我需要忽略第一行的列表？

PHP：忽略og删除列表末尾的空行

3 个答案: