Finding an Array in an Array of Arrays

[davidannis]

I am trying to locate an array in an array of arrays:

    $card_pos = array_search($target, $_SESSION['leitner']['boxes'][($box - 1)]);
    if ($card_pos !== false) {
  // Do my stuff here
}echo '<pre> oh no -- didn\'t find '; print_r($target); echo "in ";print_r ($_SESSION['leitner']['boxes'][($box + 1)]);echo '<br>leitner';print_r ($_SESSION['leitner']); echo '</pre>';

but I don't find the target in the array though it is clearly there as you can see in the output:

oh no -- didn't find Array
(
    [pos] => v5g
    [tense] => agerimasu
)
in Array
(
    [0] => Array
        (
            [pos] => v5g
            [tense] => agerimasu
        )

)

leitnerArray
(
    [boxes] => Array
        (
            [1] => Array
                (
                )

            [2] => Array
                (
                )

            [3] => Array
                (
                    [0] => Array
                        (
                            [pos] => v5g
                            [tense] => agaru
                        )

                    [1] => Array
                        (
                            [pos] => v5g
                            [tense] => agarimasu
                        )

                    [2] => Array
                        (
                            [pos] => v5g
                            [tense] => agarimasen
                        )

                    [3] => Array
                        (
                            [pos] => v5g
                            [tense] => agaranai
                        )

                    [4] => Array
                        (
                            [pos] => v5g
                            [tense] => ageru
                        )

                    [5] => Array
                        (
                            [pos] => v5g
                            [tense] => ageranai
                        )

                    [6] => Array
                        (
                            [pos] => v5g
                            [tense] => agerimasen
                        )

                    [7] => Array
                        (
                            [pos] => v5g
                            [tense] => agerimasend
                        )

                    [8] => Array
                        (
                            [pos] => v5g
                            [tense] => agereba
                        )

                    [9] => Array
                        (
                            [pos] => v5g
                            [tense] => agareba
                        )

                    [10] => Array
                        (
                            [pos] => v5g
                            [tense] => agatte
                        )

                    [11] => Array
                        (
                            [pos] => v5g
                            [tense] => agette
                        )

                )

            [4] => Array
                (
                    [0] => Array
                        (
                            [pos] => v5g
                            [tense] => agerimasu
                        )

                )

            [5] => Array
                (
                )

        )

    [denom_total] => Array
        (
            [1] => 0
            [2] => 0
            [3] => 36
            [4] => 40
            [5] => 40
        )

    [denom_max] => 40
)

[ginerjm]

Methinks you are searching too deep. Your third level index - what is the value you have set in $boxes? That is the only element you will do your array search on and that is too low.

[Jacques1]

You got the indexes wrong.

 

Looking at your debugging code, it seems you want to search for $_SESSION['leitner']['boxes'][$box + 1]. But you're actually searching for $_SESSION['leitner']['boxes'][$box - 1]. Note the third index.

[Psycho]

You might also consider changing the format of the array. I notice that all of the arrays within "box" 3 have the same 'pos' value. Do all the records in a "box" always have the same 'pos' value? If so, you could simplify thing by formatting the array something like this:

 

 

leitnerArray
(
    [boxes] => Array
        (
            [1] => Array
                (
                )
 
            [2] => Array
                (
                )
 
            [3] => Array
                (
                    [pos] => v5g
                    [tenses] => Array
                        (
                            [0] => agaru
                            [1] => agarimasu
                            [2] => agarimasen
                            [3] => agaranai
                             . . . etc.

 

You should try avoiding repeating data such as that.

[davidannis]

You might also consider changing the format of the array. I notice that all of the arrays within "box" 3 have the same 'pos' value. Do all the records in a "box" always have the same 'pos' value? If so, you could simplify thing by formatting the array something like this:

All of the records in a box in this case happen to have the same pos value (part of speech) but in many cases that won't be true.