ip match

<?php

function lget($filename)
{
    $handle = fopen($filename, 'r');
    while (FALSE !== $line = fgets($handle)) {
        yield $line;
    }
    fclose($handle);
}

$map = [
    ['file' => '1.txt', 'res' => 'Valid'],
    ['file' => '2.txt', 'res' => 'Invalid'],
    ['file' => '3.txt', 'res' => 'Fix'],
];

$targetIP = '1.1.1.1';

foreach ($map as $item) {
    $entries = lget($item["file"]);
    $found = FALSE;
    foreach ($entries as $entry) {
        if (strcmp(trim($entry), $targetIP) === 0) {
            echo $item["res"];
            $found = FALSE;
            break;
        }
    }
    if ($found) {
        break;
    }
}