⚡ CYBER NOVEMBER SALE ⚡ 50% off any plan for 6 months, exclusive to new subscribers.

Join the Treehouse affiliate program and earn 25% recurring commission!

  • Treehouse Logo
  • Plans
    Chevron
    • For Individuals
    • For Businesses
    • For Schools
    • For Libraries
    • For Military
  • Library
    Chevron
    • All Courses
    • Tracks
    • College Credit
  • Techdegree
    Chevron
    • Overview
    • Front End Development
    • Full Stack JavaScript
    • Data Analysis
    • UX Design
    • Python
  • Community
    Chevron
    • Code Adventures
    • Discord
    • Forum
    • Success Stories
    • Treehouse Links
    • 100 Days of Code
  • Resources
    Chevron
    • Career Toolbox
    • CodeForward
    • Free Treehouse Near Me
    • Jobs
    • Blog
    • Support
    • About
  • For Individuals For Businesses For Schools For Libraries For Military
  • All Courses Tracks College Credit
  • Overview Front End Web Development Full Stack JavaScript Python Development Data Analysis UX Design
  • Code Adventures Discord Forum Success Stories Treehouse Links 100 Days of Code
  • Career Toolbox CodeForward Free Treehouse Near Me Jobs Blog Support About
  • Sign In
  • Free Trial
Instagram Twitter Facebook YouTube LinkedIn
    • Newest
      • Newest
      • Active
      • Unanswered
      • Featured
    • All Topics
      • All Topics
      • • General Discussion
      • • AI
      • • APIs
      • • Coding for Kids
      • • College Credit
      • • Computer Science
      • • CSS
      • • Data Analysis
      • • Databases
      • • Design
      • • Development Tools
      • • Digital Literacy
      • • Game Development
      • • Go Language
      • • HTML
      • • Java
      • • JavaScript
      • • Learning Resources
      • • Machine Learning
      • • No-Code
      • • PHP
      • • Professional Growth
      • • Python
      • • Quality Assurance
      • • React
      • • Ruby
      • • Security
      • • Swift
      • • Vibe Coding
  • Hoi Cheung
    Hoi Cheung
    5,356 Points

    About the part !isset.

    Posted September 18, 2019 9:18pm by Hoi Cheung
    Hoi Cheung
    5,356 Points
    • PHP
    • Build a Basic PHP Website (2018)
    • Listing and Sorting Inventory Items
    • Item Details and Redirection

    0 Answers

  • Sean Flanagan
    Sean Flanagan
    33,237 Points

    Page not working

    Posted September 27, 2018 9:52pm by Sean Flanagan
    Sean Flanagan
    33,237 Points
    • PHP
    • Build a Basic PHP Website (2018)
    • Listing and Sorting Inventory Items
    • Item Details and Redirection

    2 Answers

  • mostafamekawy6
    mostafamekawy6
    72 Points

    blank page can some one check my code

    Posted May 10, 2018 8:46pm by mostafamekawy6
    mostafamekawy6
    72 Points
    • PHP
    • Build a Basic PHP Website (2018)
    • Listing and Sorting Inventory Items
    • Item Details and Redirection

    1 Answer

  • Iulian Mirzac
    Iulian Mirzac
    3,174 Points

    Parse error: syntax error, unexpected '<', expecting end of file in /home/treehouse/workspace/catalog.php on line 4

    Posted September 3, 2017 6:53pm by Iulian Mirzac
    Iulian Mirzac
    3,174 Points
    • PHP
    • Build a Basic PHP Website (2018)
    • Listing and Sorting Inventory Items
    • Item Details and Redirection

    3 Answers

  • Pepijn Dekker
    PLUS
    Pepijn Dekker
    Courses Plus Student 5,231 Points

    Image will not load on the /details.php?id=102.

    Posted March 23, 2017 1:59pm by Pepijn Dekker
    Pepijn Dekker
    Courses Plus Student 5,231 Points
    • PHP
    • Build a Basic PHP Website (2018)
    • Listing and Sorting Inventory Items
    • Item Details and Redirection

    2 Answers

  • Min Chin
    Min Chin
    401 Points

    details page wont show up.

    Posted March 21, 2017 7:40pm by Min Chin
    Min Chin
    401 Points
    • PHP
    • Build a Basic PHP Website (2018)
    • Listing and Sorting Inventory Items
    • Item Details and Redirection

    1 Answer

  • Jonathan Prada
    Jonathan Prada
    7,039 Points

    The details.php page (localhost/details.php?id=101) sends me back to catalog.php. The code is identical. help.

    Posted March 7, 2017 11:08am by Jonathan Prada
    Jonathan Prada
    7,039 Points
    • PHP
    • Build a Basic PHP Website (2018)
    • Listing and Sorting Inventory Items
    • Item Details and Redirection

    1 Answer

  • rob111
    rob111
    8,379 Points

    Code block breaks my page

    Posted December 3, 2016 11:14am by rob111
    rob111
    8,379 Points
    • PHP
    • Build a Basic PHP Website (2018)
    • Listing and Sorting Inventory Items
    • Item Details and Redirection

    2 Answers

  • Daniel Harrison
    Daniel Harrison
    2,944 Points

    Syntax Error

    Posted June 27, 2016 7:41pm by Daniel Harrison
    Daniel Harrison
    2,944 Points
    • PHP
    • Build a Basic PHP Website (2018)
    • Listing and Sorting Inventory Items
    • Item Details and Redirection

    2 Answers

  • Flo Tubes
    Flo Tubes
    5,110 Points

    $_GET[""] explaination

    Posted May 13, 2016 3:31pm by Flo Tubes
    Flo Tubes
    5,110 Points
    • PHP
    • Build a Basic PHP Website (2018)
    • Listing and Sorting Inventory Items
    • Item Details and Redirection

    1 Answer

  • treeyon 94
    treeyon 94
    14,715 Points

    Browser is linking to catalog page if i paste the url: http://localhost/homepage/s1v1/details.php?id=101

    Posted February 25, 2016 12:33pm by treeyon 94
    treeyon 94
    14,715 Points
    • PHP
    • Build a Basic PHP Website (2018)
    • Listing and Sorting Inventory Items
    • Item Details and Redirection

    1 Answer

  • James Mockridge
    James Mockridge
    4,043 Points

    Blank page on details.php

    Posted February 15, 2016 1:09pm by James Mockridge
    James Mockridge
    4,043 Points
    • PHP
    • Build a Basic PHP Website (2018)
    • Listing and Sorting Inventory Items
    • Item Details and Redirection

    3 Answers

Posting to the forum is only allowed for members with active accounts.
Please sign in or sign up to post.

    Treehouse

  • About
  • Blog
  • Careers
  • Community
  • Stories
  • Shop
  • Contact
  • Gift Card

See Full Catalogue

Techdegree

  • Front End Web Development
  • Full Stack JavaScript
  • Python Development
  • Data Analysis
  • UX Design

Tracks

  • Learn to Code for Beginners
  • Beginning Python
  • Beginning SQL
  • Beginning Java
  • ...see more

Courses

  • JavaScript Basics
  • Intro to HTML & CSS
  • Python Basics
  • CSS Layout
  • ...see more

Explore

  • Plans
  • Affiliates
  • Perks
  • Free Treehouse Near Me
  • Treehouse for Libraries
  • Treehouse for Businesses
  • Twitter
  • YouTube
  • Facebook
  • LinkedIn
  • Instagram
Terms & Conditions | Privacy

© 2025 Treehouse Island, Inc.