How to work json string on foreach loop in php

Question

I'm trying to make a foreach loop from string value which comes from a JSON value like:

string '["userdomain.ltd"], ["test.com"]'

I want to make a foreach loop and echo URL under the loop

I have tried using this but it returns PHP Warning: Invalid argument supplied for foreach()

foreach( $device_url as $url ){
    echo $url;
}

Answer 1

Your input is a string, so we need transform it to array for iterate:

<?php
$str = '["userdomain.ltd"], ["test.com"]';

$arr = explode(',', $str);

foreach ($arr as $el) {
    echo json_decode($el)[0];
    echo "\n";
}

Here you can try working code: PHPize.online

Answer 2

My guess is, you did not decode you string before passing it to your loop. And you can't loop on a string. You should use the json_decode function to decode it first, and then use your loop.

<?php
$input = '{"key": "value"}';
$decodedIntput = json_decode($input);
foreach( $decodedIntput as $url ){
    echo $url;
}

I did not used your json because it did not look valid.