⚔️ Arena
Code challenge arena
Solve the challenge — your code is checked automatically. Earn XP and sharpen your skills.
0/26
solved
⚡ 0
Arena XP (940 of)
🔥 0
day streak
🏅 0/12
Badges
0%
📅 Daily⚡ 2x XP bonus
PHP: array sum
Level 5 — arrays · php · easy
Solve →
Refreshes every day
🔍
Language:Difficulty:
26 challenges
easyjs
First step
Level 2 — JavaScript
+20 XP
easyjs
1 to 5
Level 2 — loops
+30 XP
easyjs
Array sum
Level 2 — arrays
+30 XP
mediumjs
Even numbers
Level 2 — condition + loop
+40 XP
mediumjs
Reverse a string
Level 2 — string
+40 XP
mediumjs
Factorial
Level 9 — algorithms
+50 XP
hardphp
FizzBuzz (1..15)
Level 5 — PHP logic
+60 XP
easyphp
PHP: array sum
Level 5 — arrays
+30 XP
easyphp
PHP: uppercase
Level 5 — string
+25 XP
easyjs
Square
Level 2 — arithmetic
+20 XP
easyjs
Cube
Level 2 — arithmetic
+25 XP
easyjs
Largest number
Level 2 — arrays
+30 XP
easyjs
Smallest number
Level 2 — arrays
+30 XP
mediumjs
Average
Level 2 — arrays
+40 XP
mediumjs
Reverse an array
Level 2 — arrays
+40 XP
mediumjs
Sum 1 to 100
Level 2 — loops
+40 XP
easyjs
5 down to 1
Level 2 — loops
+30 XP
easyjs
Word length
Level 2 — string
+20 XP
mediumjs
Vowel count
Level 2 — string
+45 XP
mediumjs
Celsius → Fahrenheit
Level 2 — arithmetic
+40 XP
hardjs
Fibonacci (7 terms)
Level 9 — algorithms
+60 XP
easyphp
PHP: largest number
Level 5 — arrays
+30 XP
easyphp
PHP: word length
Level 5 — string
+25 XP
mediumphp
PHP: reverse a string
Level 5 — string
+40 XP
mediumphp
PHP: even numbers
Level 5 — condition + loop
+40 XP
hardphp
PHP: Fibonacci (7 terms)
Level 9 — algorithms
+60 XP
🏅 Badges
0/12🎯
First step
🔒 Locked
🖐️
High five
🔒 Locked
🔟
Ten strong
🔒 Locked
🧠
Sharp mind
🔒 Locked
🌐
Polyglot
🔒 Locked
🟨
JS master
🔒 Locked
🐘
PHP master
🔒 Locked
⚡
100 XP
🔒 Locked
💎
500 XP
🔒 Locked
🔥
On fire
🔒 Locked
🏅
Weekly streak
🔒 Locked
👑
Champion
🔒 Locked
🏆 Global leaderboard
Leaderboard is unavailable right now.
Log in to join the leaderboard — your results are saved.