remove quotation in array - php

Question

I have a string like this:-
$a = " [abc,hjhd],[ccdc,cdc],[csc,vdfv]";
I want to insert this string into an array.
$marker_tower_line = array(
'type' => 'Feature',
'properties' => array(
'marker-color' => '#f00',
'marker-size' => 'small'
),
'geometry' => array(
'type' => 'LineString',
'coordinates' => array (
$a
)
)
);
The output coming is-
["[abc,hjhd],[ccdc,cdc],[csc,vdfv]"];
But I need-
[[abc,hjhd],[ccdc,cdc],[csc,vdfv]];

Answer 1

The most Simplest answer (one-liner with simple php functions):-
<?php
$a = " [abc,hjhd],[ccdc,cdc],[csc,vdfv]";
$b = array_chunk(explode(",",str_replace(array("[","]"),array("",""),trim($a))),2);
print_r($b);
Output:- https://eval.in/833862
Or a bit more shorten (without trim()):-
<?php
$a = " [abc,hjhd],[ccdc,cdc],[csc,vdfv]";
$b = array_chunk(explode(",",str_replace(array("[","]"," "),array("","",""),$a)),2);
print_r($b);
Output:- https://eval.in/833882

Answer 2

i think you are looking for this,
$somearray=explode(",",$a);
then use $somearray for coordinates. The only catch is that you have to use this idea to implement in your logic.For example if $a is the string that you are making then make it like this,
$a = "[abc,hjhd].,[ccdc,cdc].,[csc,vdfv]";
and then use explode as
$somearray=explode(".,",$a);
hope this helps.

Answer 3

You can use this code. The function make_my_array() will work for any string encoded in your given format.
The make_my_array() function takes your string as parameter and iterates through every character to make your output array. It determines staring of a set by '[' character and determines separate set elements by ',' character and the ']' character determines end of a set.
function make_my_array($sa) {
$s = "";
$ans = array();
for($i=0; $i<strlen($sa); $i++) {
$t = array();
if($sa[$i] == '[') {
for($j=$i+1; $j<strlen($sa); $j++) {
if($sa[$j] == ',') {
$t[] = $s;
$s = "";
}
else if($sa[$j] == ']') {
$t[] = $s;
$s = "";
$i = $j + 1;
$ans[] = $t;
break;
}
else {
$s .= $sa[$j];
}
}
}
}
return $ans;
}
$a = " [abc,hjhd],[ccdc,cdc],[csc,vdfv]";
$marker_tower_line = array(
'type' => 'Feature',
'properties' => array(
'marker-color' => '#f00',
'marker-size' => 'small'
),
'geometry' => array(
'type' => 'LineString',
'coordinates' => make_my_array($a)
)
);