How can I parse a string of the following format into an associative array?
[ ["key1", "value1"], ["key2", "value2"], ["key3", "value3] ]
Into:
Array
(
["key1"] => "value1"
["key2"] => "value2"
["key3"] => "value3"
)
Thanks!
edit: The data is in a string format i.e:
$stringdata ='[ ["key1", "value1"], ["key2", "value2"], ["key3", "value3"] ]';
Use a loop and loop through the whole array and assign your values into a new array using the first element as key and the second element as value. Usually like this:
$new_array = array();
foreach($array as $arr) {
$new_array[$arr[0]] = $arr[1];
}
But to parse the string into an array I would take the following RegEx approach and then a loop:
$str = '[ ["key1", "value1"], ["key2", "value2"], ["key3", "value3"] ]';
preg_match_all('/(\[("(.*?)"), ("(.*?)")\])/i', $str, $matches);
//Now we have in $matches[3] and $matches[5] the keys and the values
//and we would now turn this into an array using a loop
$new_array = array();
for($k = 0; $k < count($matches[3]); $k++) {
$new_array[$matches[3][$k]] = $matches[5][$k];
}
See this live demo https://3v4l.org/u3jpl
Use functional approach with array_reduce
<?php
$ar = [ ["key1", "value1"], ["key2", "value2"], ["key3", "value3"] ];
$newAr = array_reduce($ar, function($carry, $item) {
$carry[$item[0]] = $item[1];
return $carry;
});
var_dump($newAr);
Output:
array(3) {
["key1"]=>
string(6) "value1"
["key2"]=>
string(6) "value2"
["key3"]=>
string(6) "value3"
}
Here is a solution using json_decode.
<?php
$json = json_decode('[["key1", "value1"], ["key2", "value2"], ["key3", "value3"]]');
$final = array();
foreach($json as $value) {
$final[] = array($value[0]=>$value[1]);
}
final is the array in your required format.
