PHP multiple explode key value array [closed]

Instead of trying to split things, match it instead:

preg_match_all('/(\w):(\w+)/', 'b:Blue | y:Yellow | r:Red', $matches);
print_r(array_combine($matches[1], $matches[2]));

It matches an alphanumeric character, followed by a colon and then more alphanumeric characters; both parts are captured in memory groups. Finally, the first memory groups are combined with the second memory groups.

A more hacked approach is this:

parse_str(strtr('b:Blue | y:Yellow | r:Red', ':|', '=&'), $arr);
print_r(array_map('trim', $arr));

It turns the string into something that looks like application/x-www-form-urlencoded and then parses it with parse_str(). Afterwards, you need to trim any trailing and leading spaces from the values though.

explode first with | and after :

// I got the from php.net
function multiexplode ($delimiters,$string) {
    $ary = explode($delimiters[0],$string);
    array_shift($delimiters);
    if($delimiters != NULL) {
        foreach($ary as $key => $val) {
             $ary[$key] = multiexplode($delimiters, $val);
        }
    }
    return  $ary;
}
$string = "b:Blue | y:Yellow | r:Red"; // Your string

$delimiters = array(" | ", ":"); // | important that it is first
$matches = multiexplode($delimiters, $string);

/*
array (size=3)
  0 => 
    array (size=2)
      0 => string 'b' (length=1)
      1 => string 'Blue' (length=4)
  1 => 
    array (size=2)
      0 => string 'y' (length=1)
      1 => string 'Yellow' (length=6)
  2 => 
    array (size=2)
      0 => string 'r' (length=1)
      1 => string 'Red' (length=3)
*/

Try something like this:

$str = "b:Blue | y:Yellow | r:Red";

// Split on ' | ', creating an array of the 3 colors 
$split = explode(' | ', $str);

$colors = array();

foreach($split as $spl)
{
    // For each color now found, split on ':' to seperate the colors.
    $split2 = explode(':', $spl);

    // Add to the colors array, using the letter as the index. 
    // (r:Red becomes 'r' => 'red')
    $colors[$split2[0]] = $split2[1];
}

print_r($colors);

/*
Array
(
    [b] => Blue
    [y] => Yellow
    [r] => Red
)
*/

$string = "b:Blue | y:Yellow | r:Red";
//split string at ' | '
$data = explode(" | ", $string);
$resultArray = array();
//loop through split result
foreach($data as $row) {
    //split again at ':'
    $result = explode(":", $row);
    //add key / value pair to result array
    $resultArray[$result[0]] = $result[1];
}
//print result array
print_r($resultArray);