Creating an associative array with keys from a simple indexed array of strings [duplicate]

Question

I have an array of strings with a format of key: value like this:

Array
    (
         [0] => label: productlabel
         [1] => timezone: SDT
         [2] => price: 0.2225
         [3] => reserve: 60
    )

I need to create an associative array with the key part as the array element index and value part as the array element value, like this:

Array
    (
        [label] => productlabel
        [timezone] => SDT
        [price] => 0.22255
        [reserve] => 60
    )

Is there a shorter way or a function to create this, or I need to make it manually with basic control structures?

How are you creating the initial array with colon-separated values, easiest to change it at its source? Otherwise you'll have to use regex or explode to separate your values. — ctwheels
– ctwheels, Commented Jun 29, 2017 at 17:04
@ctwheels unfortunately this is how I receive the data from a Google spreadsheet. So changes at source is not an option in this case. — neptune
– neptune, Commented Jun 29, 2017 at 17:23

clearshot66 · Accepted Answer · 2017-06-29 17:04:41Z

1

Split each based on the : , then add to the new array

foreach($array as $value){   // loop the original array
  $split = explode(":",$value);  // split values based on : into 2 element array
  $array2[$split[0]] = $split[1];  // add to the new array, [key] = [value]
}

answered Jun 29, 2017 at 17:04

clearshot66

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2 Comments

neptune Over a year ago

Accepted this because it works on php versions <=5.4

Cava Over a year ago

@neptune It's not the only one.

Mark Baker · Accepted Answer · 2017-06-29 17:04:14Z

1

Map the array splitting the value on : and then use array_column() to assign the values and keys from that split:

$originalArray = [
    'label: productlabel',
    'timezone: SDT',
    'price: 0.2225',
    'reserve: 60',
];

$newArray = array_column(
    array_map(
        function($value) {
            return explode(': ',$value);
        },
        $originalArray
    ),
    1,
    0
);

var_dump($newArray);

answered Jun 29, 2017 at 17:04

Mark Baker

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Comments

Cava · Accepted Answer · 2017-06-29 17:14:01Z

1

You can create a new array and split in ':' after set the $key and $value.

$oldArray = [
    'label: productlabel',
    'timezone: SDT',
    'price: 0.2225',
    'reserve: 60',
];

$newArray = [];

foreach($oldArray as $pos) {
    list($key, $value) = explode(':', $pos);
    $newArray[$key] = $value;
}

answered Jun 29, 2017 at 17:14

Cava

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Comments

Don't Panic · Accepted Answer · 2017-06-29 17:27:40Z

1

If you convert the : to =, the strings are like .ini lines, so you could treat it like that.

$assoc = parse_ini_string(str_replace(': ', '= ', join("\n", $array)));

answered Jun 29, 2017 at 17:27

Don't Panic

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