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, $lists_of_olympic_medalists) ? 'Added to the Lineup' : 'Not yet!'
?>
Results
Not yet!
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print_r($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
)
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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($lists_of_olympic_medalists);
?>
Results
Array (
[0] => Uday
[1] => Hitesh
[2] => Avantika
[3] => Ella
)
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array_shift($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
I hope you get an idea about array functions in php.
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