使用PHP将数组中的每个元素分配给变量。

Question

I have an array with unknown information. I want to get each element and assign it to a variable so I can use it elsewhere.

This works but it only gets the first element.

function firstElement($foo,$m='k') {
                    foreach ($foo as $k=>$v){
                    return $$m;
                }
}

$firstKey=firstElement($foo);
$firstVal=firstElement($foo,'v');

Answer 1

You could use the extract() PHP function. If you want to doit yourself:

Remove the "return" statement from there. Once you "return" a value, the foreach and the entire functions stops.

Answer 2

The extract() function will pull out each array key and assign the value to a variable. If the key is, for example, 'color', then it will name the new variable $color and assign the value from the array key to it.

extract($foo);

Answer 3

Answering my own question:

To find out what the name was assigned to each element I used print_r($foo);

This gave me:

array("a" => "blah", "b" => "blah")

Then I used extract

extract($foo);

//echo "$a";
//echo "$b";