array functions in php – PHP Array Functions with Examples

array functions in php Introduction. PHP array() function creates and returns an array.

array functions in php – PHP Array Functions

array functions in php – there are the list of the Commonly used PHP5 Array Functions Like as array_slice($arr, $offset, $length), array_rand($arr), array_reverse($arr), array_flip($arr), array_map(‘function_name’, $arr), sort($arr), array_shift($arr), array_push($arr, $val), array_pop($arr), array_keys($arr), array_values($arr), array_merge($arr1, $arr2), print_r($arr), in_array($var, $arr), is_array($arr) and sizeof($arr).

sizeof($arr)

Example

<?php

$lists_of_olympic_medalists = array("Uday", "Hitesh", "Avantika");
echo "Size of the array is: ". sizeof($lists_of_olympic_medalists);

?>

Results
Size of the array is: 3

is_array($arr)

Example

<?php

$lists_of_olympic_medalists = array("Uday", "Hitesh", "Avantika");

// using ternary operator
echo is_array($lists_of_olympic_medalists) ? 'Array' : 'not an Array';

$mymember = "Uday";

// using ternary operator
echo is_array($mymember) ? 'Array' : 'not an Array';

?>

Results
Array
not an Array

in_array($var, $arr)

Example

<?php

$lists_of_olympic_medalists = array("Uday", "Hitesh", "Avantika");

$concept = "Ella";

echo in_array($concept, $lists_of_olympic_medalists) ? 'Added to the Lineup' : 'Not yet!'

?>

Results
Not yet!

Don’t Miss : PHP associative array push

print_r($arr)

Example

<?php

$lists_of_olympic_medalists = array("Uday", "Hitesh", "Avantika");
print_r($lists_of_olympic_medalists);

?>

Results
Array (
[0] => “Uday”
[1] => “Hitesh”
[2] => “Avantika”
)

array_merge($arr1, $arr2)

Example

<?php

$exam_pass_list = array(
        "Krishna" => "India",
        "Bhumika" => "Fukky",
        "Devraj" => "Swarg",
        "Movie" => "Tamil"
    );

$members = array("Vishal", "Jayshree", "Naveent", "Sanjay");

$merged = array_merge($exam_pass_list, $members);

print_r($merged);

?>

Results

Array ( 
    [Krishna] => India 
    [Bhumika] => Fukky 
    [Devraj] => Swarg 
    [Movie] => Tamil 
    [0] => Vishal 
    [1] => Jayshree 
    [2] => Naveent 
    [3] => Sanjay 
)

Don’t Miss : PHP check if value exists in associative array

array_values($arr)

Example

<?php

$exam_pass_list = array(
        "Krishna" => "India",
        "Bhumika" => "Fukky",
        "Devraj" => "Swarg",
        "Movie" => "Tamil"
    );

// members who own the above members
$members = array("Vishal", "Jayshree", "Naveent", "Sanjay");

// let's merge the two arrays into one
$merged = array_merge($exam_pass_list, $members);

//getting only the values
$merged = array_values($merged);

print_r($merged);

?>

Results

Array ( 
    [0] => India 
    [1] => Fukky 
    [2] => Swarg 
    [3] => Tamil 
    [4] => Vishal 
    [5] => Jayshree 
    [6] => Naveent 
    [7] => Sanjay 
)

array_keys($arr)

Example

<?php

//getting only the keys
$keys = array_values($merged);

print_r($keys);

?>

Results

Array ( 
    [0] => Krishna 
    [1] => Bhumika 
    [2] => Devraj 
    [3] => Movie 
    [4] => 0 
    [5] => 1 
    [6] => 2 
    [7] => 3 
)

array_pop($arr)

Example

<?php

$lists_of_olympic_medalists = array("Uday", "Hitesh", "Avantika");

// removing the last element
array_pop($lists_of_olympic_medalists);

print_r($lists_of_olympic_medalists);

?>

Results

Array ( 
    [0] => Uday 
    [1] => Hitesh 
)

array_push($arr, $val)

Example

<?php

$lists_of_olympic_medalists = array("Uday", "Hitesh", "Avantika");

// adding a new element at the end
array_push($lists_of_olympic_medalists, "Ella");

print_r($lists_of_olympic_medalists);

?>

Results

Array ( 
    [0] => Uday 
    [1] => Hitesh 
    [2] => Avantika
    [3] => Ella
)

Don’t Miss : Php filter multidimensional array by multiple values

array_shift($arr)

Example

<?php

$lists_of_olympic_medalists = array("Uday", "Hitesh", "Avantika");

// removing the first element
array_shift($lists_of_olympic_medalists);

print_r($lists_of_olympic_medalists);

?>

Results

Array ( 
    [0] => Hitesh 
    [1] => Avantika
)

sort($arr)

Example

<?php

$lists_of_olympic_medalists = array("Uday", "Hitesh", "Avantika", "Ella");

// sort the array
sort($lists_of_olympic_medalists);

print_r($liverankingmembers);

?>

Results

Array ( 
    [0] => Avantika 
    [1] => Ella 
    [2] => Hitesh 
    [3] => Uday 
)

array_map(‘function_name’, $arr)

Example

<?php

function addOne($val) {
    // adding 1 to input value
    return ($val + 1);
}

$numbers = array(10, 20, 30, 40, 50);

$numbers = array_map('addOne', $numbers);

print_r($numbers)

?>

Results

Array ( 
    [0] => 11 
    [1] => 21 
    [2] => 31 
    [3] => 41 
    [4] => 51 
)

array_flip($arr)

Example

<?php

$exam_pass_list = array(
        "Krishna" => "India",
        "Bhumika" => "Fukky",
        "Devraj" => "Swarg",
        "Movie" => "Tamil"
    );
    
print_r(array_flip($exam_pass_list));

?>

Results

Array ( 
    [India] => Krishna 
    [Fukky] => Bhumika 
    [Swarg] => Devraj 
    [Tamil] => Movie
)

array_reverse($arr)

Example

<?php

$ranks = array(10, 20, 30, 40, 50);
print_r(array_reverse($ranks));

?>

Results

Array ( 
    [0] => 50 
    [1] => 40 
    [2] => 30 
    [3] => 20 
    [4] => 10 
)

Don’t Miss : PHP array functions

array_rand($arr)

Example

<?php

$members = array("rani", "bheem", "bhumi", "grishna", "waqdur", "yatin");

echo "member of the day: ". $members[array_rand($members)];

?>

Results

member of the day: grishna

array_slice($arr, $offset, $length)

Example

<?php

$members = array("rani", "bheem", "bhumi", "grishna", "waqdur", "yatin");

print_r(array_slice($members, 2, 3));

?>

Results

Array ( 
    [0] => bhumi 
    [1] => grishna 
    [2] => waqdur
)

Don’t Miss : PHP array functions with examples

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