how to convert a string into an array in php

Solution:

You can use preg_match_all (Regular Expression), and array_combine:

RegEx used : ([^\/]*?)\/(\d+), eplanation here (by RegEx101)

$str = "php/127/typescript/12/jquery/120/angular/50";

#match string
preg_match_all("/([^\/]*?)\/(\d+)/", $str, $match);

#then combine match[1] and match[2] 
$result = array_combine($match[1], $match[2]);

print_r($result);

Demo (with steps) : https://3v4l.org/blZhU

Solution:

One approach might be to use preg_match_all to extract the keys and values from the path separately. Then, use array_combine to build the hashmap:

$str = "php/127/typescript/12/jquery/120/angular/50";
preg_match_all("/[^\W\d\/]+/", $str, $keys);
preg_match_all("/\d+/", $str, $vals);
$mapped = array_combine($keys[0], $vals[0]);
print_r($mapped[0]);

This prints:

Array
(
    [0] => php
    [1] => typescript
    [2] => jquery
    [3] => angular
)

Solution:

You can use explode() with for()Loop as below:-

<?php
    
    $str = 'php/127/typescript/12/jquery/120/angular/50';
    $list = explode('/', $str);
    $list_count  = count($list);

    $result = array();
    for ($i=0 ; $i<$list_count; $i+=2) {
        $result[ $list[$i] ] = $list[$i+1];
    }
    
    print_r($result);
    ?>

Output:-

 Array
    (
        [php] => 127
        [typescript] => 12
        [jquery] => 120
        [angular] => 50
    )
    

Demo Here :- https://3v4l.org/8PQhd