Echo JSON -> Arrays in PHP [closed] - php

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I've been trying to read a JSON string in PHP since yesterday, but I always fail. Can you help me?
{"WEAPON_PISTOL":{"ammo":227}}
TO
ECHO: WEAPON_PISTOL WITH 227 Ammunition
I've tried this way up until now:
$json_string = "{"WEAPON_PISTOL":{"ammo":227}}";
$obj = json_decode($json_string,true);
for($i=0;$i<count($obj);$i++) {
echo $obj[$i];
echo $obj[$i]["ammo];
}

Answer 1

The way to access the value of "ammo" is:
$json_string = '{"WEAPON_PISTOL":{"ammo":227}}';
$obj = json_decode($json_string);
echo $obj->WEAPON_PISTOL->ammo;
This returns:
227
If you want to loop through several weapons, even though your example only contains one weapon, you can do:
$json_string ='{"WEAPON_PISTOL":{"ammo":227},
"WEAPON_GUN":{"ammo":6}}';
$weapons = json_decode($json_string);
foreach ($weapons as $weaponName => $weapon) {
echo "$weaponName has $weapon->ammo rounds.\n";
}
This returns:
WEAPON_PISTOL has 227 rounds.
WEAPON_GUN has 6 rounds.