PHP: How to get specific word from string - php

Question

This is my string: $string="VARHELLO=helloVARWELCOME=123qwa";
I want to get 'hello' and '123qwa' from string.
My pseudo code is.
if /^VARHELLO/ exist
get hello(or whatever comes after VARHELLO and before VARWELCOME)
if /^VARWELCOME/ exist
get 123qwa(or whatever comes after VARWELCOME)
Note: values from 'VARHELLO' and 'VARWELCOME' are dynamic, so 'VARHELLO' could be 'H3Ll0' or VARWELCOME could be 'W3l60m3'.
Example:
$string="VARHELLO=H3Ll0VARWELCOME=W3l60m3";

Answer 1

Here is some code that will parse this string out for you into a more usable array.
<?php
$string="VARHELLO=helloVARWELCOME=123qwa";
$parsed = [];
$parts = explode('VAR', $string);
foreach($parts AS $part){
if(strlen($part)){
$subParts = explode('=', $part);
$parsed[$subParts[0]] = $subParts[1];
}
}
var_dump($parsed);
Output:
array(2) {
["HELLO"]=>
string(5) "hello"
["WELCOME"]=>
string(6) "123qwa"
}
Or, an alternative using parse_str (http://php.net/manual/en/function.parse-str.php)
<?php
$string="VARHELLO=helloVARWELCOME=123qwa";
$string = str_replace('VAR', '&', $string);
var_dump($string);
parse_str($string);
var_dump($HELLO);
var_dump($WELCOME);
Output:
string(27) "&HELLO=hello&WELCOME=123qwa"
string(5) "hello"
string(6) "123qwa"

Answer 2

Jessica's answer is perfect, but if you want to get it using preg_match
$string="VARHELLO=helloVARWELCOME=123qwa";
preg_match('/VARHELLO=(.*?)VARWELCOME=(.*)/is', $string, $m);
var_dump($m);
your results will be $m[1] and $m[2]
array(3) {
[0]=>
string(31) "VARHELLO=helloVARWELCOME=123qwa"
[1]=>
string(5) "hello"
[2]=>
string(6) "123qwa"
}