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Fibonacci in PHP in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Gray Code Decoder Gray Code Encoder Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Gray Code Decoder Gray Code Encoder Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 97th ArmaanAS 680 50 5ms 8 Mar 2021 97th kayahr 680 50 5ms 18 Jun 2021 97th seanplowman 680 50 4ms 18 Jul 2022 97th zamppe 680 50 4ms 8 Aug 2022 97th wh3n3v3r 🇨🇿 680 50 5ms 15 Nov 2024 97th madeforlosers 680 50 4ms 22 Nov 2024 97th Matter1024 🇮🇳 680 50 5ms 30 Mar 2026 108th vonKrafft 667 51 4ms 25 Mar 2020 108th pschmid0 🇺🇸 667 51 5ms 25 Aug 2022 108th owen-c-parker 🇺🇸 667 51 4ms 23 Nov 2022 108th zakariamouhid 667 51 4ms 10 Jan 2023 108th CheeseCake628 🇳🇴 667 51 4ms 11 Mar 2023 108th TemaYud 667 51 5ms 7 Oct 2024 114th masashimachida 654 52 5ms 28 Jul 2020 114th hossammohammed72 654 52 5ms 12 Jul 2023 114th infostreams 654 52 4ms 14 Jul 2023 114th Andrey2001 654 52 5ms 24 Nov 2025 118th bastienvoirin 🇫🇷 642 53 5ms 30 Nov 2020 118th ybrodala 642 53 4ms 24 Aug 2021 118th Bobini1 🇵🇱 642 53 4ms 29 Oct 2021 118th mathisfun271 642 53 4ms 20 Feb 2024 118th dokutan 642 53 6ms 10 Apr 2025 123rd d4rkne55 630 54 4ms 7 Mar 2018 123rd tjtnorton 630 54 4ms 11 Dec 2018 123rd ashtraypettingzoo 🇺🇸 630 54 5ms 16 Feb 2023 123rd desecaw13 630 54 4ms 24 Jan 2025 127th HexF 618 55 5ms 7 Dec 2017 127th Just4FunCoder 618 55 5ms 26 Aug 2024 129th GiftOfDeath 607 56 4ms 5 Feb 2018 129th jrdbrndt 607 56 4ms 14 Feb 2018 129th rambox11 607 56 4ms 7 Apr 2018 129th osinsky 607 56 5ms 1 May 2019 129th MichalMarsalek 🇨🇿 607 56 5ms 29 Nov 2021 129th H3Rol4x 607 56 5ms 5 Dec 2023 135th bridennis 596 57 5ms 5 Apr 2019 135th leopoldinelolcat 596 57 5ms 12 Sep 2019 135th Axsag 🇫🇷 596 57 5ms 23 Jul 2021 135th CedricGebistorf 596 57 5ms 3 Feb 2022 135th aminrnd 596 57 5ms 13 Jul 2023 135th epic-programmer-guy 596 57 5ms 26 Dec 2023 135th Kokusui 🇯🇵 596 57 5ms 23 Jul 2024 135th rzv-me 596 57 5ms 6 Oct 2024 135th TheAtrossian 596 57 5ms 8 Jan 2025 135th blaztoma 🇱🇹 596 57 5ms 22 Sep 2025 145th rollershutter 586 58 4ms 5 Oct 2018 145th shaunjc 586 58 4ms 2 Jul 2021 145th Maximizer02 586 58 5ms 16 Jan 2024 145th PyryL 🇫🇮 586 58 5ms 23 Aug 2024 149th liviucerchez 576 59 5ms 23 Oct 2023 150th WitPxxl 567 60 4ms 29 Dec 2017 150th viktoras25 567 60 4ms 12 Apr 2019 150th MightyJoeYoung 567 60 5ms 3 May 2021 153rd mbiniek 557 61 5ms 10 Nov 2022 153rd charliegaming 557 61 4ms 3 Oct 2023 153rd jdcodes28 557 61 5ms 11 Sep 2024 153rd Lv0Sys 🇵🇱 557 61 4ms 25 May 2025 157th Beancake12 548 62 5ms 10 Apr 2019 157th verticall 548 62 4ms 28 Jul 2019 157th germania 548 62 4ms 6 Jan 2020 157th JRaspass 🇬🇧 548 62 4ms 6 Mar 2020 157th hrubymar10 548 62 4ms 2 Nov 2021 157th msbranicky 548 62 5ms 8 Sep 2023 157th eiburns 548 62 5ms 11 Sep 2023 157th JesseNoEyes 🇺🇸 548 62 5ms 25 Sep 2024 165th Onitech 540 63 4ms 14 Nov 2018 165th mrdamien 540 63 5ms 25 Mar 2019 165th marsdeat 540 63 4ms 16 Jul 2020 165th nortonbatista 540 63 4ms 31 Oct 2023 169th thejazex1 531 64 4ms 2 Oct 2019 169th fuerst-ede 531 64 5ms 8 Jul 2022 169th iqbal-hossain-momox 531 64 4ms 11 Jul 2023 169th piripasa 531 64 4ms 12 Jul 2023 169th azure-blondon 531 64 5ms 10 Jul 2024 169th andre-lameirinhas 🇵🇹 531 64 5ms 22 Jul 2024 169th Jonson26 531 64 5ms 7 days ago 176th MCausc78 🇺🇦 523 65 4ms 7 Jan 2023 176th jbirchevans 523 65 4ms 3 Aug 2023 176th asminog 523 65 4ms 4 Oct 2024 176th heanyang1 523 65 5ms 22 Apr 2025 180th stadamdoki 515 66 4ms 12 Apr 2021 180th janga1 515 66 6ms 19 Aug 2021 182nd matthudgins 507 67 5ms 3 Apr 2019 182nd jessegyger 507 67 5ms 22 Oct 2022 182nd Zach1031 507 67 4ms 15 Nov 2025 185th hacker112 🇸🇪 500 68 4ms 12 Jun 2024 186th arkcodes 493 69 5ms 27 Feb 2018 186th ConnorHowell 493 69 5ms 22 Mar 2018 186th martinnorling 🇸🇪 493 69 5ms 17 May 2022 189th phpboyscout 486 70 4ms 3 Sep 2019 189th Tonic-Box 486 70 4ms 6 Nov 2020 191st colios13 479 71 5ms 12 Aug 2020 192nd miika 472 72 5ms 22 Nov 2019 193rd YPuest 466 73 5ms 23 Jul 2024 194th ANovelForStudy 459 74 4ms 9 Jun 2023 194th MiranDaniel 🇨🇿 459 74 5ms 30 Aug 2023 196th sm1lko 453 75 4ms 14 Dec 2022 196th snobbywaterfowl 453 75 4ms 10 Jul 2025 198th FrederikHutfless 🇩🇪 442 77 5ms 22 Dec 2022 198th ApoChagi 442 77 5ms 25 Oct 2025 200th dwilmer 436 78 5ms 26 Feb 2018 First Prev 101–200 of 240 Next Last