lte-exam-chapter-13-14.php

#!/usr/bin/php
<?php

$terms = [
    "干扰发生影响的基本要素有三个：干扰源、传播途径和" => "被干扰源",
    "控制共站干扰影响的三要素是：抑制干扰源、切断干扰传播途径，提高被干扰源敏感器件的" => "抗干扰性能",
    "抑制干扰源的手段有：提高发射机的性能和" => "增加发射端滤波器",
    "切断干扰传播途径的手段有：调整频点、设置保护带宽和" => "增加隔离度",
    "提高被干扰源敏感器件的抗干扰性能的主要手段：" => "提高接收机的性能",
    "空间隔离度需求由两个因素决定：发射端发送干扰大小和" => "接收机允许接收的最小干扰",
    "从网络性能上讲，LTE与2G、3G能够共站址的两个前提是：规划的覆盖范围相同和" => "系统间的干扰可控制",
    "TD-LTE与WLAN系统共存的干扰隔离度要求为多少（dB）" => "87",
    "TD-LTE与WLAN系统共存的空间距离要求为水平距离多少m" => "54",
    "TD-LTE与WLAN系统共存的空间距离要求为垂直距离多少m" => "2.3",
    "无线网络优化解决问题的过程分三步：网络数据收集、网络问题分析和" => "网络问题解决",
    "从无线制式的角度来看，无线网优的问题可以分为：GSM、WCDMA/TD-SCDMA、WLAN和什么等" => "LTE",
    "从无线网络性能的角度上来看，无线网络优化可以分为四个层次（各层次间用中文逗号间隔）" => "用户级，业务级，网络级，网元级",
    "OMC的英文全称为" => "Operation & Maintenance Center",
    "CAPEX的英文全称为" => "Capital Expenditure",
    "OPEX的英文全称为" => "Operation Expenditure",
    "SON的英文全称为" => "Self Organizing Networks",
    "从网络的生命周期来看，SON的功能包括：自规划、自部署、自优化和什么等多方面的能力" => "自维护",
    "从SON对参数的管理作用来看，SON包括两项大的工作：网络参数的自配置和" => "网络参数的自优化",
    "LTE网络优化维护中业务级优化的三多一少问题是指（用中文逗号间隔）" => "多场景，多业务，多网元，资源少"
];

system("clear");
$name = readline("Input Your Exam Name（Like: 04-张三）: ");
system("date");
$time_start = time();
$count = count($terms);

echo PHP_EOL;
echo "Hello, $name!";
echo PHP_EOL;
$line = "Init";
$i = 0;

// while ($term = current($terms)) {
    // $key = key($terms);
while ($key = array_rand($terms)) {
    $term = $terms[$key];
	$i++;
    while ($line !== $term) {
        if ($line !== "Init") {
            echo "Wrong! Try again!" . PHP_EOL;
        }
        $line = readline("$i/$count. $key: ");
    }
    echo "Good!";
    $line = "Init";
    echo PHP_EOL;
    // next($terms);
    unset($terms[$key]);
}

system("date");
$time_end = time();
echo PHP_EOL;
$seconds = $time_end - $time_start;
echo "$name, you finished the test in " . $seconds . " seconds!";
echo PHP_EOL;
echo "Great!!!";
echo PHP_EOL;

$content = "$name: $seconds seconds, " . date('Y-m-d H:i:s', $time_start) . ', ' . date('Y-m-d H:i:s', $time_end) . "\n";
file_put_contents('./' . basename(__FILE__, '.php') . '.log', $content, FILE_APPEND | LOCK_EX);

while (true) { readline(); }