ROLL YOUR OWN TEMPLATING SYSTEM IN PHP

Why Do I Need to Build a Templating System?

Step 1 Plan the System

• What We Need to Build
•  How the Templating System Works

Step 2 Outline the Class

• Create the Folder Structure
•   Create the Main Files

Step 3 Define a "Template"

•  What Would the HTML Look Like?
•  Use the Variable Data to Choose Template Tags

Step 4 Load the Entries

•    Tie the Entries to the Templating System

Step 5 Load the Template File

•   Make Sure the File Exists

Step 6 Parse the Template

•  But First, a Word About Regular Expressions
• Get Ready for Testing
• Remove Comments from the Template File
•  Separate the Header, Footer, and Loop for Processing
•  Isolate the Main Entry Loop
•  Isolate the Header
• Isolate the Footer 
•  Identify Template Tags with Regular Expressions

Step 7 Get Ready for Template Tag Replacement: Currying

•  Wait. What Did You Just Say?
• Write the Currying Method
• How Does Currying Apply to the Templating System?

Step 8 Replace Template Tags with Matching Entry Data

• Write the Tag Replacing Method
• Modify the Template Parsing Method to Replace Template Tags
•  Replace Template Tags in the Header and Footer of the Template

Step 9 Use Real Entries

•  Create a Template
•  Load Real Entries and Use the New Template

 For more details, refer this url :

https://code.tutsplus.com/tutorials/roll-your-own-templating-system-in-php--net-16596

write by :
Che Wahida (programmer team)