输出数组，因此可以用作数据属性的值

Question

I have an array in PHP that I am looping through to get content.

When echoed, the results of my array variable $myArray looks like the below

Array(
  [0] => ABC
  [1] => DEF
  [2] => GHI
  [3] => JKL
     )
Array(
  [0] => MNO
  [1] => 123A
  [2] => 123B
  [3] => 123C
     )
Array(
  [0] => orange
  [1] => yellow
  [2] => green
  [3] => blue
     )

But when i pass this to the html data element using

data-results = "$myArray"

I get a

Notice: Array to string conversion 

error.

How can this be passed as one array to the html data element?

Answer 1

This has probably already been answered elsewhere, but you cannot echo an array out. You can only echo out a scalar value or an object that has a __toString() method on it.

So it's data-results="{$myArray[0][0]}" or something else in your case, since you have a multi-dimensional array. What you probably want is some sort of for loop:

foreach ($myArray as $arr) {
   foreach ($arr as $value) {
        echo "data-rule={$value}";
   }
}