php - 如果 || 我的代码不能正常工作

Question

这是我的代码

<?php

if( $country==("United Stats" || Canada || United Kingdom) ) {
   echo $Country;
}

?>

我想说“如果 Country == United Stats 'or' Canada 'or' United Kingdom >>> echo $Country

当我使用 || 它不能正常工作请问有什么问题吗？

score 4 · Accepted Answer

<?php
$cs = array('United States', 'Canada', 'United Kingdom');
if(in_array($country, $cs)){
echo $country
}
?>

score 4 · Accepted Answer

你不能这样做，你需要写：

if( $country=="United Stats" || $country=="Canada" || $country=="United Kingdom" ) {

score 3 · Accepted Answer

3

if (in_array($country, array('United Stats', 'Canada', 'United Kingdom'))) {

于 2012-07-11T20:54:15.007 回答

score 2 · Accepted Answer

您必须将 $country 与每个变量进行比较

if ($country == "United States" ||
    $country == "Canada" ||
    $country == "United Kingdom") {

    echo $country;
}

score 1 · Accepted Answer

您的代码不是有效的 PHP 语法。这将起作用：

<?php

if( $country == "United Stats" || $country == "Canada"
        || $country == "United Kingdom" ) {
    echo $country;
}

?>

顺便说一句，您似乎是 PHP 新手。您应该阅读文档，也许还应该阅读一本书来学习该语言。

score 1 · Accepted Answer

<?php
if( $country=="United Stats" Or $country=="Canada" Or $country=="United Kingdom" ) {
   echo $country;
}
?>

或者

<?php
if( $country=="United Stats" || $country=="Canada" || $country=="United Kingdom" ) {
   echo $country;
}
?>

score -1 · Accepted Answer

<?php

$country = "Canada";
if( $country=="United Stats" || $country=="Canada" || $country=="United Kingdom" ) {
   echo $country;
}

?>

7 回答 7