Question

可能重复：
Split into two variables?

我有一个输出两个单词的变量。我需要一种方法将这些数据分成两个单独的单词，并为每个单独的单词指定一个新变量。例如：

$request->post['colors']

如果输出是字符串"blue green"，我需要将这两种颜色分成单独的变量，一个用于蓝色，另一个用于绿色， ...例如$color_one代表蓝色，$color_two代表green。

Answer 1

在空格上

explode()并使用list()

捕获两个生成的数组组件

list($color1, $color2) = explode(" ", $request->post['colors']);
echo "Color1: $color1, Color2: $color2";

// If an unknown number are expected, trap it in an array variable instead
// of capturing it with list()
$colors = explode(" ", $request->post['colors']);
echo $colors[0] . " " . $colors[1];

如果您无法保证将一个空格分开，请改为使用preg_split()：

// If $request->post['colors'] has multiple spaces like "blue    green"
list($color1, $color2) = preg_split("/\s+/", $request->post['colors']);

Answer 2

您也可以使用爆炸阵列：

//store your colors in a variable
$colors=" blue green yellow pink purple   ";

//this will remove all the space chars from the end and the start of your string
$colors=trim ($colors);
$pieces = explode(" ", $colors);
//store your colors in the array, each color is seperated by the space

//if you don't know how many colors you have you can loop the with foreach

$i=1;
foreach ($pieces as $value) {
     echo "Color number: ".$i." is: " .$value;
     $i++;

}
//output: Color number: 1 is: blue
//        Color number: 2 is: green etc..

将变量的数据拆分为单独的变量

2 个答案: