PHP array_fill() Function

<?php

$b1=array_fill(5,6,"yellow");
print_r($b1);
?>

Output:

Array ( [5] => yellow [6] => yellow [7] => yellow [8] => yellow [9] => yellow [10] => yellow )

Syntex:

array_fill(index, number, value)

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PHP array_column() Function

<?php // An array that represents a possible record set returned from a database $a = array ( array ( 'id' => 5698 , 'first_name' => 'Mehran' , 'last_name' => 'Yaqoob' , ), array ( 'id' => 4767 , 'first_name' => 'Muneeb' , 'last_name' => 'Ahmad' , ), array ( 'id' => 3809 , 'first_name' => 'Uzair' , 'last_name' => 'Rajput' , ) ); $last_names = array_column($a, 'last_name' ); print_r($last_names); ?> Output: Array ( [0] => Yaqoob [1] => Ahmad [2] => Rajput ) Syntex: array_column( array , column_key , index_key ...

PHP array_change_key_case() Function

<?php $age= array ( "Kamran" => "35" , "Ali" => "37" , "Mehran" => "39" ); print_r(array_change_key_case($age,CASE_UPPER)); ?> Output: Array ( [KAMRAN] => 35 [ALI] => 37 [MEHRAN] => 39 )

Mastering PHP's array_merge(): When to Use It (And When Not To)

Pros, Cons, and Best Practices PHP's array_merge() function is one of the most commonly used array functions in web development. Whether you're building a simple website or a complex web application, understanding how to effectively merge arrays can save you time and prevent headaches. In this comprehensive guide, we'll explore everything you need to know about array_merge() , including its advantages, limitations, practical use cases, and alternatives. What is array_merge() in PHP? array_merge() is a built-in PHP function that combines two or more arrays into a single array. The function takes multiple array arguments and returns a new array containing all the elements from the input arrays. Basic Syntax php array_merge ( array ... $arrays ) : array Simple Example php $array1 = [ 'a' , 'b' , 'c' ] ; $array2 = [ 'd' , 'e' , 'f' ] ; $result = array_merge ( $array1 , $array2 ) ; print_r ( $result ) ; /* O...

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