PHP foreach 关键词
定义和用法
foreach
关键字用于创建 foreach 循环,该循环会遍历数组中的每个元素,并对每个元素执行一段代码块。
相关页面
实例
例子 1
打印数组中的所有值:
<?php
$cars = ["Ford", "Volvo", "BMW"];
foreach($cars as $car) {
echo "$car <br>";
}
?>
例子 2
打印关联数组中的键和值:
<?php
$people = [
"Peter" => "35",
"Ben" => "37",
"Joe" => "43"
];
foreach($people as $person => $age) {
echo "$person is $age years old";
echo "<br>";
}
?>