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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 149th roupiq 🇵🇱 557 61 4ms 14 Mar 2024 149th jdcodes28 557 61 4ms 11 Sep 2024 149th Lv0Sys 🇵🇱 557 61 4ms 25 May 2025 154th Beancake12 548 62 4ms 10 Apr 2019 154th verticall 548 62 4ms 28 Jul 2019 154th germania 548 62 4ms 6 Jan 2020 154th JRaspass 🇬🇧 548 62 6ms 6 Mar 2020 154th hrubymar10 548 62 4ms 2 Nov 2021 154th msbranicky 548 62 4ms 8 Sep 2023 154th eiburns 548 62 4ms 11 Sep 2023 154th JesseNoEyes 🇺🇸 548 62 4ms 25 Sep 2024 162nd Onitech 540 63 4ms 14 Nov 2018 162nd mrdamien 540 63 4ms 25 Mar 2019 162nd marsdeat 540 63 4ms 16 Jul 2020 162nd nortonbatista 540 63 4ms 31 Oct 2023 166th thejazex1 531 64 4ms 2 Oct 2019 166th fuerst-ede 531 64 4ms 8 Jul 2022 166th hossain-iqbal 531 64 4ms 11 Jul 2023 166th piripasa 531 64 4ms 12 Jul 2023 166th azure-blondon 531 64 5ms 10 Jul 2024 166th andre-lameirinhas 🇵🇹 531 64 4ms 22 Jul 2024 172nd MCausc78 🇺🇦 523 65 4ms 7 Jan 2023 172nd jbirchevans 523 65 4ms 3 Aug 2023 172nd asminog 523 65 5ms 4 Oct 2024 172nd heanyang1 523 65 4ms 22 Apr 2025 176th stadamdoki 515 66 5ms 12 Apr 2021 176th janga1 515 66 4ms 19 Aug 2021 178th matthudgins 507 67 4ms 3 Apr 2019 178th jessegyger 507 67 4ms 22 Oct 2022 178th Zach1031 507 67 4ms 23 days ago 181st hacker112 🇸🇪 500 68 4ms 12 Jun 2024 182nd arkcodes 493 69 4ms 27 Feb 2018 182nd ConnorHowell 493 69 4ms 22 Mar 2018 182nd martinnorling 🇸🇪 493 69 4ms 17 May 2022 185th phpboyscout 486 70 4ms 3 Sep 2019 185th Tonic-Box 486 70 4ms 6 Nov 2020 187th colios13 479 71 4ms 12 Aug 2020 188th miika 472 72 4ms 22 Nov 2019 189th YPuest 466 73 4ms 23 Jul 2024 190th ANovelForStudy 459 74 4ms 9 Jun 2023 190th MiranDaniel 🇨🇿 459 74 4ms 30 Aug 2023 192nd sm1lko 453 75 4ms 14 Dec 2022 192nd snobbywaterfowl 453 75 4ms 10 Jul 2025 194th FrederikHutfless 🇩🇪 442 77 4ms 22 Dec 2022 194th ApoChagi 442 77 4ms 25 Oct 2025 196th dwilmer 436 78 4ms 26 Feb 2018 197th FlorianGubler 425 80 4ms 23 Dec 2020 197th emgordon154 425 80 4ms 25 Jul 2024 199th FerryHupse 420 81 4ms 31 Jan 2020 200th VVstatus 415 82 4ms 13 Aug 2020 201st nico-bachner 410 83 4ms 28 Dec 2020 201st dillon-duncando 410 83 128ms 21 Dec 2021 201st bryanmytko 410 83 116ms 5 Jul 2022 204th mikerees 405 84 5ms 8 Nov 2017 205th janhabbo 395 86 4ms 2 Jul 2018 205th iTearo 🇷🇺 395 86 4ms 28 Sep 2020 207th johnennewdeeson 391 87 4ms 13 Oct 2017 208th abishek28007 386 88 4ms 7 Sep 2020 208th DaCuteRaccoon 386 88 120ms 3 Apr 2022 210th jodylecompte 382 89 5ms 30 Dec 2020 211th diwms 374 91 158ms 5 Apr 2019 211th pedromcsousa 🇵🇹 374 91 102ms 23 Nov 2020 213th blagovidov 370 92 5ms 14 Oct 2021 214th Naas13 366 93 93ms 15 Apr 2020 215th AdrianPop27 358 95 137ms 8 Apr 2019 216th PowershellKnut 🇳🇴 347 98 4ms 7 Jan 2024 217th it4e 343 99 150ms 25 Oct 2018 218th Threadzless 333 102 4ms 29 Oct 2018 219th kevinnaviapaiva 315 108 4ms 17 Feb 2025 220th jtaxen 288 118 4ms 18 Mar 2022 221st ansnaldo 264 129 4ms 22 Oct 2018 222nd Cr3aHal0 252 135 73ms 5 Jul 2019 223rd MRGAO-CR7 250 136 4ms 15 Oct 2018 224th retrohun 248 137 4ms 21 Dec 2018 225th adamiscoding 245 139 162ms 8 Nov 2017 First Prev 151–225 of 237 Next Last
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