Php - 组合具有相同值的单个数组的行

Question

Basically I have this array:

$foo[0] = array("name" => "A", "apples" => "2");
$foo[1] = array("name" => "B", "apples" => "4");
$foo[2] = array("name" => "C", "apples" => "6");
$foo[3] = array("name" => "A", "apples" => "3");
$foo[4] = array("name" => "B", "apples" => "5");
$foo[5] = array("name" => "C", "apples" => "7");

And I want this:

$foo[0] = array("name" => "A", "apple1" => "2", "apple2" => "3");
$foo[1] = array("name" => "B", "apple1" => "4", "apple2" => "5");
$foo[2] = array("name" => "C", "apple1" => "6", "apple2" => "7");

Answer 1

You can do the classic foreach loop:

$foo[0] = array("name" => "A", "apples" => "2");
$foo[1] = array("name" => "B", "apples" => "4");
$foo[2] = array("name" => "C", "apples" => "6");
$foo[3] = array("name" => "A", "apples" => "3");
$foo[4] = array("name" => "B", "apples" => "5");
$foo[5] = array("name" => "C", "apples" => "7");

$result = array();
foreach( $foo as $value ) {
    if ( !isset( $result[ $value[ "name" ] ] ) ) {
        $result[ $value[ "name" ] ] = array();
        $result[ $value[ "name" ] ][ "name" ] = $value[ "name" ];
        $result[ $value[ "name" ] ][ "apple1" ] = $value[ "apples" ];
    } else {
        $cnt = count( $result[ $value[ "name" ] ] );
        $result[ $value[ "name" ] ][ "apple" . $cnt ] = $value[ "apples" ];
    }
}

//returns all the values from the array and indexes the array numerically.
$result = array_values( $result );

echo "<pre>";
print_r( $result );
echo "</pre>";

This will result to:

Array
(
    [0] => Array
        (
            [name] => A
            [apple1] => 2
            [apple2] => 3
        )

    [1] => Array
        (
            [name] => B
            [apple1] => 4
            [apple2] => 5
        )

    [2] => Array
        (
            [name] => C
            [apple1] => 6
            [apple2] => 7
        )

)