How to convert an array into key-value pair array?

问题

I am having this array :

array(
    0 => array("name", "address", "city"), 
    1=> array( "anoop", "palasis", "Indore"),
    2=> array( "ravinder", "annapurna", "Indore")
)

and i want to make this array in this way :

array( 
    0 =>  array("name" = >"anoop" , "address" = >"palasia", "city" = >"Indore"),
    1 =>  array("name" = >"ravinder" , "address" = >"annapurna", "city" = >"Indore")
)

回答1:

Use array_combine. If $array contains your data

$result = array(
             array_combine($array[0], $array[1]),
             array_combine($array[0], $array[2])
          );

In general

$result = array();
$len = count($array);
for($i=1;$i<$len; $i++){
    $result[] = array_combine($array[0], $array[$i]);
}

回答2:

The modern way is:

$data = array_column($data, 'value', 'key');

In your case:

$data = array_column($data, 1, 0);

回答3:

If your data are in $array:

$res = array();
foreach ($array as $key=>$value) {
    if ($key == 0) {
        continue;
    }
    for ($i = 0; $i < count($array[0]); $i++) {
        $res[$array[0][$i]] = $value[$i];
    }
}

The result is now in $res.

回答4:

Here is a function that you can use:

function rewrap(Array $input){
    $key_names = array_shift($input);
    $output = Array();
    foreach($input as $index => $inner_array){
        $output[] = array_combine($key_names,$inner_array);
    }
    return $output;
}

Here is a demonstration:

// Include the function from above here 
$start = array(
    0 => array("name", "address", "city"),
    1 => array("anoop", "palasis", "Indore"),
    2 => array("ravinder", "annapurna", "Indore")
);
print_r(rewrap($start));

This outputs:

Array
(
    [0] => Array
        (
            [name] => anoop
            [address] => palasis
            [city] => Indore
        )

    [1] => Array
        (
            [name] => ravinder
            [address] => annapurna
            [city] => Indore
        )

)

Note: Your first array defined index 1 twice, so I changed the second one to 2, like this:

array(0 => array("name", "address", "city"), 1 => array("anoop", "palasis", "Indore"),2 => array("ravinder", "annapurna", "Indore"))

That was probably just a typo.

回答5:

Assuming that you are parsing a CSV file, check out the answers to this question:

Get associative array from csv

来源：https://stackoverflow.com/questions/9343713/how-to-convert-an-array-into-key-value-pair-array

标签

php

multidimensional-array