PHP中的非法偏移类型错误

Question

好吧，我有点迷路。这里是我的代码，但是如何摆脱PHP错误，告诉我这是非法的偏移类型？我试图在颜色中循环。

$color = array(

    [0]=>"red", 
    [1]=>"cherry", 
    [2]=>"orange", 
    [3]=>"amber", 
    [4]=>"blue", 
    [5]=>"sapphire", 
    [6]=>"green", 
    [7]=>"forest green", 
    [8]=>"purple", 
    [9]=>"lavender"); 
//starts at index 0 

for($colorCount=0; $colorCount <=9; $colorCount++){ 

    if ($colorCount == 9){ 
     break; 
    } 
    echo implode(", ", $color).", "; 

} 

Answer 1

我认为可能发生的事情是，因为PHP现在支持与[]短列表符号。它解析[0]为array(0)，然后尝试将其用作数组中的键，这是不允许的。这将解释确切的错误信息。

声明你的阵列，如：

$color = array(
    0 => "red", 
    1 => "cherry", 
    2 => "orange", 
    3 => "amber", 
    4 => "blue", 
    5 => "sapphire", 
    6 => "green", 
    7 => "forest green", 
    8 => "purple", 
    9 => "lavender" 
); 

你甚至可以离开过的数字，做：

$color = array(
    "red", 
    "cherry", 
    "orange", 
    "amber", 
    "blue", 
    "sapphire", 
    "green", 
    "forest green", 
    "purple", 
    "lavender" 
); 

Answer 2

$color = array(

     '0'=>"red", 
     '1'=>"cherry", 
     '2'=>"orange", 
     '3'=>"amber", 
     '4'=>"blue", 
     '5'=>"sapphire", 
     '6'=>"green", 
     '7'=>"forest green", 
     '8'=>"purple", 
     '9'=>"lavender" 
     ); 
foreach ($color as $key => $res) { 
     print_r($res); 
}