explode() into $key=>$value pair

Question

I have this:

$strVar = \"key value\";

And I want to get it in this:

array(\'key\'=>\'value\')

I tried

Answer 1

If you have long list of key-value pairs delimited by the same character that also delimits the key and value, this function does the trick.

function extractKeyValuePairs(string $string, string $delimiter = ' ') : array
{
    $params = explode($delimiter, $string);

    $pairs = [];
    for ($i = 0; $i < count($params); $i++) {
        $pairs[$params[$i]] = $params[++$i];
    }

    return $pairs;
}

Example:

$pairs = extractKeyValuePairs('one foo two bar three baz');

[
    'one'   => 'foo',
    'two'   => 'bar',
    'three' => 'baz',
]

Answer 2

Don't believe this is possible in a single operation, but this should do the trick:

list($k, $v) = explode(' ', $strVal);
$result[ $k ] = $v;

Answer 3

I found another easy way to do that:

$a = array_flip(explode(' ', $strVal));