更新数组中的变量

Question

I have a simple array $arr which contains 6 numbers.

$arr=[10,24,33,47,58,65];

I want to assign each number to a variable prefixed $color so $color1, $color2 etc up to $color6

This then gives $color1 a value of 10, $color2 a value of 24 etc

Then I want to print each of them out e.g. echo $color1; echo $color2; etc

This is what I'm trying but it doesn't work, is there a better way?

$i=1;

foreach($arr as $row)
{
    $color.$i = implode(",",$row);
    $i++;
}

Answer 1

You're looking for something aptly named variable-variables. To achieve this, you'll need to do:

<?php
    $i=1;
    foreach($arr as $row) {
        ${"color" . $i} = implode(",",$row);
        $i++;
    }
?>

And now you can echo $color1;