拆分變量的數據爲獨立的變量

Question

可能重複：
Split into two variables?

我有一個變量，將輸出兩個詞。我需要一種方法將這些數據分成兩個單獨的單詞，併爲每個分隔的單詞指定一個新變量。例如：

$request->post['colors'] 

如果輸出字符串"blue green"，我需要這兩種顏色分成不同的變量，一個是藍色和一個用於綠色， ...如$color_one爲藍色和$color_two的​​。

Answer 1

explode()他們在空間和捕捉到的兩個結果與list()

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]; 

陣列組件如果你不能保證一個單一的空間將它們分開，使用preg_split()代替：

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

Answer 2

您還可以使用一個爆炸陣：

//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..