PHP - Create key value array from string

Question

I have a string which looks like this:

$string = '1. * key1 * key2 * key3 * $ * value1 * value2 * value3 * $';

I need to turn it into a key value array. I don't care about the filtering and trimming. Already did that. But I can't figure out how to get the keys and values in the array.

What exactly should the key value array from this string look like? What's the relevance of the 1, the . the * and the $? — Mark Baker
– Mark Baker, Commented Mar 10, 2017 at 0:20

Lucas Martins · Accepted Answer · 2017-03-10 00:32:55Z

2

Is that enough for you?

$string = '1.  * key1 * key2 * key3 * $    * value1 * value2 * value3 *  $';
$string = str_replace(['1.', ' '], '', $string); // Cleaning unescessary information

$keysAndValues = explode('$', $string);

$keys = array_filter(explode('*', $keysAndValues[0]));
$values = array_filter(explode('*', $keysAndValues[1]));

$keyPairs = array_combine($keys, $values);

var_dump($keyPairs);

array (size=3)
'key1' => string 'value1' (length=6)
'key2' => string 'value2' (length=6)
'key3' => string 'value3' (length=6)

answered Mar 10, 2017 at 0:32

Lucas Martins

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Neil · Accepted Answer · 2017-03-10 00:21:22Z

0

Removes empty keys and trims values to make an orderly, usable array.

<?php

$string = '1.  * key1 * key2 * key3 * $    * value1 * value2 * value3 *  $';

$parts = explode("$",$string);
$keys = explode("*",substr($parts[0],2));
$values = explode("*",$parts[1]);
$arr = [];

for ($i = 0; $i < count($keys); $i++) {
    if (trim($keys[$i]) !== "") {
        $arr[trim($keys[$i])] = trim($values[$i]);
    }   
}
var_dump($arr);

?>

answered Mar 10, 2017 at 0:21

Neil

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