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Skill Topic · Cinematic

PHP Callback Functions — Functions Ko Argument Me Pass Karna

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

Overview
🌟

PHP Callback Functions — Functions Ko Argument Me Pass Karna — Quick Facts

📌

Feature: Anonymous

🎯

Syntax: function($x) use ($y) { return $x…

Outer variables: use() required

🔑

Multi-line: Yes

Topic 1
📚

Callback Kya Hai?

📚 Normally jab hum function call karte hain to seedha uska naam likh ke call kar dete hain…
Topic 2
💡 📊 🔬

Basic Callback Example

💡 Sabse simple callback example dekhte hain. Yahan greet() function ek callable parameter…
Topic 3
🔒

Callback with Parameters

🎯 Callbacks ko parameters bhi pass ho sakte hain. Jab calling function callback ko execute…
Topic 4

Anonymous Functions (Closures) as Callbacks

Har baar callback ke liye alag named function banana zaroori nahi hai. Agar function…
Topic 5

Arrow Functions (PHP 7.4+)

🔑 PHP 7.4 me arrow functions aayi — yeh anonymous functions ka short syntax hai. fn(params)…
Topic 6

Built-in Functions with Callbacks

PHP ke bahut saare built-in functions callbacks accept karte hain. Sabse zyada use hone…
Topic 7
📥 ⚙️ 🔬 💡

call_user_func() and call_user_func_array()

🌟 Kabhi kabhi tum dynamically decide karna chahte ho ke kaunsa function call karna hai —…
Topic 8
🚀

Closure use() — Outer Variables Access

🚀 Anonymous functions by default outer scope ke variables access nahi kar sakti. Agar tumhe…
Topic 9
📥 ⚙️ 🔬 💡

Practical Example — Event System

📚 Event system callbacks ka advanced use case hai. Tum events define karte ho (jaise…
Topic 10
💡 📊 🔬

Callback Types Table

💡 PHP me callbacks define karne ke kayi tareeqe hain. Neeche ek table hai jo saare types…
Topic 11

Summary

💡

Callback ek function hai jo doosre…

🔑

String me function naam…

array_map() har element pe…

🎯

array_filter() callback ki…

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

PHP Callback Functions — Functions Ko Argument Me Pass Karna ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

PHP Callback Functions — Functions Ko Argument Me Pass Karna ka 'Syntax' kya hai?

Complete! 🎉
COMPLETE

PHP Callback Functions — Functions Ko Argument Me Pass Karna Complete!

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PHP Callback Functions — Functions Ko Argument Me Pass Karna Complete

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