如何根据 php 中的数组值将数组分成几部分？

Question

I have a multidimensional array and I wanted to break this array into smaller arrays based on a value in the array. The multidimensional is shown below:

Array
(
[0] => Array
    (
        [0] => SUBMISSION
        [1] => 22
        [2] => 18
        [3] => 34
    )

[1] => Array
    (
        [0] => TRANSACTN
        [1] => 15
        [2] => 13
    )

[2] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[3] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[4] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[5] => Array
    (
        [0] => TRANSACTN
        [1] => 15
        [2] => 13
    )

[6] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[7] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[8] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[9] => Array
    (
        [0] => SUBMISSION
        [1] => 5
        [2] => 2
        [3] => 3
    )

[10] => Array
    (
        [0] => TRANSACTN
        [1] => 17
        [2] => 15
    )

[11] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[12] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[13] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

)

I wanted to break the above array into smaller arrays. I want to save the values starting from one SUBMISSION to the record before the next submission shown above value into an array. Likewise I want to store all the rest of the submission till the next one appears.

The result should be like below:

[0] =>Array
(
   [0] => Array
    (
        [0] => SUBMISSION
        [1] => 22
        [2] => 18
        [3] => 34
    )

[1] => Array
    (
        [0] => TRANSACTN
        [1] => 15
        [2] => 13
    )

[2] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[3] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[4] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[5] => Array
    (
        [0] => TRANSACTN
        [1] => 15
        [2] => 13
    )

[6] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[7] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[8] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )
)
[1] =>Array
(
[0] => Array
    (
        [0] => SUBMISSION
        [1] => 5
        [2] => 2
        [3] => 3
    )

[1] => Array
    (
        [0] => TRANSACTN
        [1] => 17
        [2] => 15
    )

[2] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[3] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

[4] => Array
    (
        [0] => TRANSPRICING
        [1] => 15
        [2] => 13
    )

)

I have written a code for this shown below:

<?php
$cars = array (
array("SUBMISSION",22,18,34),
array("TRANSACTN",15,13),
array("TRANSPRICING",15,13),
array("TRANSPRICING",15,13),
array("TRANSPRICING",15,13),
array("TRANSACTN",15,13),
array("TRANSPRICING",15,13),
array("TRANSPRICING",15,13),
array("TRANSPRICING",15,13),
array("SUBMISSION",5,2,3),
array("TRANSACTN",17,15),
array("TRANSPRICING",15,13),
array("TRANSPRICING",15,13),
array("TRANSPRICING",15,13)

);

 print_r($cars);

 $count_submission=0;

 for($i=0;$i<count($cars);$i++){

if($cars[$i][0] == 'SUBMISSION'){

    $count_submission++;
}
}
?>

I tried exploding using the first SUBMISSION but its not working.Cn anyone help me out in this ?

Answer 1

you can iterate over array using foreach like:

$buf = array();
$exploded_cars = array();
$next = 0;
foreach ($cars as $car) {
    if ($car[0] == "SUBMISSION") {
        $next += 1;
        if ($next == 2) {
            array_push($exploded_cars, $buf);
            $buf = array($car);
            $next = 1;
        } else {
            array_push($buf, $car);
        }
    } else {
        array_push($buf, $car);
    }
}
array_push($exploded_cars, $buf);
unset($buf);
unset($next);
print_r($exploded_cars);