使用数组搜索数组答案

【问题标题】：Seach Array with an array使用数组搜索数组
【发布时间】：2021-02-22 14:38:32
【问题描述】：

我正在做一项学校作业，我们需要将 textarea 中的输入“翻译”为数组中预先写好的单词。我不知道如何使选择的语言单选数组来搜索语言数组。

HTML

<html>
  <head>
    <title>
      Translation PHP
    </title>
  </head>
  <body>
    <h1>Input your word and select the language you want to translate to.</h1>

    <form action="form.php" method="GET/POST"> 
      <p>Input your word for translation:</p>
        <input type="text" name="inputword"> 

      <p>Select language to translate to:</p>
        <input type="radio" name="language" value="Swedish">Swedish<br>
        <input type="radio" name="language" value="Italian">Italian<br>
        <input type="radio" name="language" value="Spanish">Spanish<br>
        <input type="radio" name="language" value="German">German<br>
        <input type="radio" name="language" value="French">French<br>
        <input type="submit" name="translate" value="Translate"/>
    </form>
      <br>
      <p>Words available: Hello, Apple, Fruit, Car, Cat, Dog, Shoes, House, School, Sweatshirt</p>
  </body>
</html>

PHP

<?php 
$TranslateWord = $_GET['inputword'];
$choosenLanguage = $_GET['language'];

$English = array("Hello","Apple","Fruit","Car","Cat","Dog","Shoes","House","School","Sweatshirt");
$German = array("Hallo","Apfel","Obst","Wagen","Katze","Hund","Schuhe","Haus","Schule","Sweatshirt" );
$Swedish = array("Hej","Äpple","Frukt","Bil","Katt","Hund","Skor","Hus","Skola","Tröja");
$Italian = array("Ciao","Mela","Frutta","Macchina","Gatto","Cane","Scarpe","Casa","Scuola","Maglione");
$Spanish = array("Hola","Manzana","Fruta","Auto","Gato","Pero","Casa","Zapatos","Colegio","Sueter");
$French = array("Bonjour","Pomme","Fruit","Auto","Chat","Chien","Loger","Chaussures","l'ecole","Chandail");
    
    
    
$positionWord = array_search($TranslateWord, $English);
    
//This is where I need the language array to be found by the positionWord and choosen language radio in the form.
?>

如果我在之前的步骤中做错了什么，请告诉我，以便我学习如何改进。我尝试在数组中创建数组，但这只会给我更多错误。

【问题讨论】：

标签： php arrays arraylist

【解决方案1】：

您可以使用$$ 机制来使用变量来寻址变量

$TranslateWord = 'Apple';
$choosenLanguage = 'French';

$English = array("Hello","Apple","Fruit","Car","Cat","Dog","Shoes","House","School","Sweatshirt");
$German = array("Hallo","Apfel","Obst","Wagen","Katze","Hund","Schuhe","Haus","Schule","Sweatshirt" );
$Swedish = array("Hej","Äpple","Frukt","Bil","Katt","Hund","Skor","Hus","Skola","Tröja");
$Italian = array("Ciao","Mela","Frutta","Macchina","Gatto","Cane","Scarpe","Casa","Scuola","Maglione");
$Spanish = array("Hola","Manzana","Fruta","Auto","Gato","Pero","Casa","Zapatos","Colegio","Sueter");
$French = array("Bonjour","Pomme","Fruit","Auto","Chat","Chien","Loger","Chaussures","l'ecole","Chandail");
    
$pos = array_search($TranslateWord, $English);

echo $pos;

echo $$choosenLanguage[$pos];

结果

1Pomme

【讨论】：

【解决方案2】：

要创建不同语言的多维数组，您可以使用类似

$translate = array(
    "English" => array("Hello","Apple","Fruit","Car","Cat","Dog","Shoes","House","School","Sweatshirt"),
    "German" => array("Hallo","Apfel","Obst","Wagen","Katze","Hund","Schuhe","Haus","Schule","Sweatshirt" ),

);

然后使用$choosenLanguage变量作为数组的维度来使用...

$positionWord = array_search($TranslateWord, $translate[$choosenLanguage]);

【讨论】：

@wanted9 不要被“变量”这个“闪亮的东西”所诱惑。使用奈杰尔的答案来避免养成不良的编码习惯。当我第一次遇到可变变量时，我认为它们非常神奇。然后我了解到您正在有效地将类似数组的数据转换为非数组数据。这意味着您将失去使用 php 强大的数组函数的能力，并且您的动态变量将更难追踪（由人类开发人员和您的 IDE）。像 Nigel 演示的那样设置您的阵列数据，然后为自己使用专业技术而庆幸自己。