PHP array_combine() function

The array_combine() function is an inbuilt function in PHP. This function is introduced in PHP 5. It is used to create an array by using one array for keys and another for its values.

Syntax

Parameter	Description	Is compulsory
array_keys	The keys of the array to be used	compulsory
array_values	The values of the array to be used	compulsory

Important note: Total number of elements in both of the arrays must be equal for the function to execute successfully otherwise, it will throw an error.

Example 1

<?php
$language =array('Php', 'Core java', 'C', 'Javascript', 'C++');
$marks = array(95, 96, 80, 75,68);
$language_marks=array_combine($language, $marks);
print_r($language_marks);
?>

Output:

 Array ( [Php] => 95  [Core java] => 96  [C] => 80  [Javascript] => 75  [C++] => 68 )

Example 2

<?php
function Combine($nam1, $age2)
{
return(array_combine($nam1, $age2));
}
$nam1 = array("Ajay", "Amit", "Rahul");
$age2 = array('24', '30', '35');
print_r(Combine($nam1, $age2));
?>

Output:

Array (    [Ajay] => 24    [Amit] => 30    [Rahul] => 35 )

Example 3

<?php
$a1=array("a","b","c","d");
$g2=array("Cricket","Football","Badminton","Hockey");
print_r(array_combine($a1,$g2));
?>

Output:

Array ( [a] => Cricket [b] => Football [c] => Badminton [d] => Hockey )

Example 4

<?php
$a = array('green', 'red', 'yellow');
$b = array('guava', 'cherry', 'orange');
$c = array_combine($a, $b);
print_r($c);
?>

Output:

Array (  [green] => guava  [red] => cherry  [yellow] => orange )

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