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Skill Topic · Cinematic

PHP RegEx — Regular Expressions Se Pattern Matching

Version: v2.0.0 | Modified: 2026-03-25

Overview
🌟

PHP RegEx — Regular Expressions Se Pattern Matching — Quick Facts

📌

Function: Kya Karta Hai

🎯

`preg_match()`: Pehla match dhundta hai

`preg_match_all()`: Saare matches dhundta hai

🔑

`preg_replace()`: Pattern ko replace karta hai

Topic 1
📚

RegEx Kya Hai?

💡

Text me koi pattern dhundna…

🔑

User input validate karna (email,…

Text me find-and-replace karna

🎯

Text ko custom delimiters se split…

Topic 2
💡

RegEx Pattern Ki Structure

💡

Delimiter: Pattern ki shuruaat aur…

🔑

Pattern: Woh actual text ya rules…

Modifiers: Pattern ke behavior ko…

Topic 3
🎯

preg_match() — Pehla Match Dhundna

🎯 preg_match() string me pattern ka pehla match dhundta hai. Agar match milta hai to 1…
Topic 4

preg_match_all() — Saare Matches Dhundna

preg_match() sirf pehla match dhundta hai. Agar aapko saare matches chahiye, to…
Topic 5
📥 📥 🧠 🔬 💡 🎯

preg_replace() — Find aur Replace

🔑 preg_replace() pattern ko dhund ke uski jagah naya text daal deta hai. Yeh PHP ka sabse…
Topic 6
📊 🔬

preg_split() — Pattern Se Split

explode() sirf ek fixed delimiter se split karta hai, lekin preg_split() pattern ke basis…
Topic 7
🔒

Meta Characters — Pattern Ke Building Blocks

🌟 Regular expressions ki asli taaqat meta characters me hai. Yeh special characters…
Topic 8
🚀

Lookahead aur Lookbehind

🚀 Yeh advanced patterns hain jo check karte hain ke kisi match ke aage ya peeche kya hai,…
Topic 9
📥 📥 🧠 🔬 💡 🎯

Named Groups

📚 Normal groups me $matches[1], $matches[2] use karte hain jo confusing ho sakta hai. Named…
Topic 10
💡 📊 🔬

Practical Validations

💡 Real-world applications me RegEx sabse zyada input validation ke liye use hota hai: `php…
Topic 11
🎯

Common Patterns Quick Reference

🎯 | Pattern | Kya Check Karta Hai | Example | |---------|---------------------|---------| |…
Topic 12

Practical Example — Input Cleaner Class

`php <?php class InputCleaner { // Extra spaces remove karo public static function…
Topic 13
📥 📥 🧠 🔬 💡 🎯

preg_grep() aur preg_quote()

🔑 preg_grep() — Array me se pattern ke basis par items filter karo: `php <?php $words =…
Topic 14

Summary

| Concept | Detail | |---------|--------| | RegEx kya hai | Pattern matching language jo…
Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

PHP RegEx — Regular Expressions Se Pattern Matching ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

PHP RegEx — Regular Expressions Se Pattern Matching ka 'preg_match()' kya hai?

Complete! 🎉
COMPLETE

PHP RegEx — Regular Expressions Se Pattern Matching Complete!

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PHP RegEx — Regular Expressions Se Pattern Matching Complete

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