PHP list() 函数
PHP 教程
· 2019-01-22 20:29:30
实例
把数组中的值赋给一些变量：
<?php
$my_array = array("Dog","Cat","Horse");
list($a, $b, $c) = $my_array;
echo "I have several animals, a $a, a $b and a $c.";
?>
$my_array = array("Dog","Cat","Horse");
list($a, $b, $c) = $my_array;
echo "I have several animals, a $a, a $b and a $c.";
?>
定义和用法
list() 函数用于在一次操作中给一组变量赋值。
注释：该函数只用于数字索引的数组。
语法
list(var1,var2...)
| 参数 | 描述 |
|---|---|
| var1 | 必需。第一个需要赋值的变量。 |
| var2,... | 可选。更多需要赋值的变量。 |
技术细节
| 返回值： | 返回被赋值的数组。 |
|---|---|
| PHP 版本： | 4+ |
更多实例
实例 1
使用第一个和第三个变量：
<?php
$my_array = array("Dog","Cat","Horse");
list($a, , $c) = $my_array;
echo "Here I only use the $a and $c variables.";
?>
$my_array = array("Dog","Cat","Horse");
list($a, , $c) = $my_array;
echo "Here I only use the $a and $c variables.";
?>
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