CODEWITHSUNDEEP
php
Borniet
Borniet

Reputation: 3546

explode() into $key=>$value pair

I have this:

$strVar = "key value";

And I want to get it in this:

array('key'=>'value')

I tried it with explode(), but that gives me this:

array('0' => 'key',
      '1' => 'value')

The original $strVar is already the result of an exploded string, and I'm looping over all the values of the resulting array.

Upvotes: 43

Views: 85873

Answers (16)

Joeri
Joeri

Reputation: 2308

Not sure this is really an answer but it took me some time to figure out so I'm going to share this anyway.

I wanted to change

Array
(
    [0] => email= [email protected]
    [1] => name = Joeri
    [2] => token= AB2240824==
)

into

Array
(
    [email] => [email protected]
    [name]  => Joeri
    [token] => AB2240824==

)

And got that solved with:

$values = array_combine(
    array_map(fn($v) => trim(explode("=", $v, 2)[0]), $values),
    array_map(fn($v) => trim(explode("=", $v, 2)[1]), $values)
);

Hope this helps someone.

Upvotes: 0

sensorario
sensorario

Reputation: 21668

I am building an application where some informations are stored in a key/value string.

tic/4/tac/5/toe/6

Looking for some nice solutions to extract data from those strings I happened here and after a while I got this solution:

$tokens = explode('/', $token);

if (count($tokens) >= 2) {
    list($name, $val) = $tokens;
    $props[$name] = $val;
}

if (count($tokens) >= 4) {
    list(, , $name, $val) = $tokens;
    $props[$name] = $val;
}

if (count($tokens) >= 6) {
    list(, , , , $name, $val) = $tokens;
    $props[$name] = $val;
}

// ... and so on

freely inspired by smassey's solution

This snippet will produce the following kinds of arrays:

$props = [
    'tic' => 4,
];

or

$props = [
    'tic' => 4,
    'tac' => 5,
];

or

$props = [
    'tic' => 4,
    'tac' => 5,
    'toe' => 6,
];

my two cents

Upvotes: 0

Marijn
Marijn

Reputation: 5

If you have more values in a string, you can use array_walk() to create an new array instead of looping with foreach() or for(). I'm using an anonymous function which only works with PHP 5.3+.

// your string
$strVar = "key1 value1&key2 value2&key3 value3";

// new variable for output
$result = array();

// walk trough array, add results to $result
array_walk(explode('&', $strVar), function (&$value,$key) use (&$result) {
    list($k, $v) = explode(' ', $value);
    $result[$k] = $v;
});

// see output
print_r($result);

This gives:

Array
(
    [key1] => value1
    [key2] => value2
    [key3] => value3
)

Upvotes: -1

predkony
predkony

Reputation: 101

I found another easy way to do that:

$a = array_flip(explode(' ', $strVal));

Upvotes: -2

Миша Дестроер
Миша Дестроер

Reputation: 11

list($array["min"], $array["max"]) = explode(" ", "key value");

Upvotes: 1

winkbrace
winkbrace

Reputation: 2711

If you have long list of key-value pairs delimited by the same character that also delimits the key and value, this function does the trick.

function extractKeyValuePairs(string $string, string $delimiter = ' ') : array
{
    $params = explode($delimiter, $string);

    $pairs = [];
    for ($i = 0; $i < count($params); $i++) {
        $pairs[$params[$i]] = $params[++$i];
    }

    return $pairs;
}

Example:

$pairs = extractKeyValuePairs('one foo two bar three baz');

[
    'one'   => 'foo',
    'two'   => 'bar',
    'three' => 'baz',
]

Upvotes: 0

Alienoiduk
Alienoiduk

Reputation: 101

$my_string = "key0:value0,key1:value1,key2:value2";

$convert_to_array = explode(',', $my_string);

for($i=0; $i < count($convert_to_array ); $i++){
    $key_value = explode(':', $convert_to_array [$i]);
    $end_array[$key_value [0]] = $key_value [1];
}

Outputs array

$end_array(
            [key0] => value0,
            [key1] => value1,
            [key2] => value2
            )

Upvotes: 10

uutkukorkmaz
uutkukorkmaz

Reputation: 21

You can try this:

$keys = array();
$values = array();

$str = "key value"; 
$arr = explode(" ",$str);

foreach($arr as $flipper){
   if($flipper == "key"){
      $keys[] = $flipper;
   }elseif($flipper == "value"){
      $values[] = $flipper;
   }
}

$keys = array_flip($keys);
// You can check arrays with
//print_r($keys);
//print_r($values);

foreach($keys as $key => $keyIndex){
  foreach($values as $valueIndex => $value){
       if($valueIndex == $keyIndex){
          $myArray[$key] = $value;
       }
  }
}

I know, it seems complex but it works ;)

Upvotes: 2

Eranda
Eranda

Reputation: 868

If you have more than 2 words in your string, use the following code. 

    $values = explode(' ', $strVar);

    $count = count($values);
    $array = [];

    for ($i = 0; $i < $count / 2; $i++) {
        $in = $i * 2;
        $array[$values[$in]] = $values[$in + 1];
    }

    var_dump($array);

The $array holds oddly positioned word as key and evenly positioned word $value respectively.

Upvotes: 1

AbraCadaver
AbraCadaver

Reputation: 79004

Another single line:

parse_str(str_replace(' ', '=', $strVar), $array);

Upvotes: 0

nzn
nzn

Reputation: 1081

Single line for ya:

$arr = array(strtok($strVar, " ") => strtok(" "));

Upvotes: -2

Martin Prikryl
Martin Prikryl

Reputation: 202504

$pairs = explode(...);
$array = array();
foreach ($pair in $pairs)
{
    $temp = explode(" ", $pair);
    $array[$temp[0]] = $temp[1];
}

But it seems obvious providing you seem to know arrays and explode. So there might be some constrains that you have not given us. You might update your question to explain.

Upvotes: 2

smassey
smassey

Reputation: 5931

Don't believe this is possible in a single operation, but this should do the trick:

list($k, $v) = explode(' ', $strVal);
$result[ $k ] = $v;

Upvotes: 62

chandresh_cool
chandresh_cool

Reputation: 11830

Try this

$str = explode(" ","key value");
$arr[$str[0]] = $str[1];

Upvotes: 4

Voitcus
Voitcus

Reputation: 4446

You can loop every second string:

$how_many = count($array);
for($i = 0; $i <= $how_many; $i = $i + 2){
  $key = $array[$i];
  $value = $array[$i+1];
  // store it here
}

Upvotes: 3

iiro
iiro

Reputation: 3118

$strVar = "key value";
list($key, $val) = explode(' ', $strVar);

$arr= array($key => $val);

Edit: My mistake, used split instead of explode but:

split() function has been DEPRECATED as of PHP 5.3.0. Relying on this feature is highly discouraged

Upvotes: 4

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