如何在 PHP 中从数组中获取单个值
答案：使用数组键或索引
如果您想从索引、关联或多维数组中访问单个值，您可以通过使用数组索引或键来完成。
让我们看看下面的例子来了解它的基本工作原理：
<?php
// Indexed array
$sports = array("Baseball", "Cricket", "Football", "Shooting");
// Associative array
$cities = array("France"=>"Paris", "India"=>"Mumbai", "UK"=>"London", "USA"=>"New York");
// Multidimensional array
$superheroes = array(
array(
"name" => "Peter Parker",
"character" => "Spider-Man",
),
array(
"name" => "Tony Stark",
"character" => "Iron-Man",
),
array(
"name" => "Clark Kent",
"character" => "Super-Man",
)
);
echo $sports[0]; // Outputs: Baseball
echo "<br>";
echo $sports[1]; // Outputs: Cricket
echo "<br>";
echo $cities["France"]; // Outputs: Paris
echo "<br>";
echo $cities["USA"]; // Outputs: New York
echo "<br>";
echo $superheroes[0]["name"]; // Outputs: Peter Parker
echo "<br>";
echo $superheroes[1]["character"]; // Outputs: Iron-Man
?>FAQ 相关问题解答
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