PHP Array Functions Examples

PHP Array Functions provides many functions to access and manipulate the array element. We have covered the various PHP array functions. Because there are many Array functions comes in PHP.

PHP array Functions

PHP array() function creates and returns an array. So we can create the indexed, associative and multidimensional arrays. But we make sure about the syntax and all.

Indexed Array: These are basic arrays with numeric index.

Example :

<?php
$arr = array ("JAVA", "PHP", "LARAVEL");
echo $arr[0];
?>

Output

JAVA

Associative Array: These are key-value pair arrays which have the numeric or text key as index.

Example

<?php
$associate_arr = array (
"Name" => "Admin",
"Post" => "Developer",
"Company" => "Developer Helps"
);
echo $associate_arr ["Name"];
?>

Output

Admin

Multidimensional Array: These are arrays which contain one or more arrays.

Example :

<?php
$multi_arr = array ( 
array ("JAVA", "JSP", "JSTL"),
array ("PHP", "LARAVEL", "WORDPRESS"),
array ("PYTHON", "DJANGO")
);
echo $multi_arr[0][1];
?>

Output

JSP

PHP Count Function

PHP count() function counts the total number of elements in the array.

Example

<?php    
$lang=array("JAVA","PHP","PYTHON");    
echo count($lang);    
?> 

Output

3

PHP Sort Function

PHP sort() function sorts the elements of array.

Example :

<?php    
$lang=array("JAVA","PHP","C");    
sort($lang);
foreach( $lang as $l )
{
   echo "<br>".$l;
} 
?>

Output

C
JAVA
PHP 

PHP array_reverse function

PHP array_reverse() function returns the array which contain its elements in reversed order.

Example :

<?php    
$lang=array("JAVA","PHP","C");    
$reverse_lang = array_reverse($lang);
foreach( $reverse_lang as $rev )
{
   echo "<br>".$rev;
}    
?>

Output

C
PHP
JAVA

PHP array_search Function

PHP array_search() function search the value in an array. This function returns the key if search is successful.

Example

<?php    
$arr=array("JAVA","PHP","C");    
$key = array_search("PHP",$arr);
echo $key;
?>

Output

1

PHP sizeof Function

PHP sizeof () function returns the size of array or number of elements exist in the array.

Example :

<?php    
$arr=array("JAVA","PHP","C");    
echo "Size of array is: ". sizeof($arr);
?>

Output

Size of array is: 3

PHP is_array function

PHP is_array() function check the variable in form of array or not. If variable is an array, it returns true otherwise false.

Example

<?php    
$lang=array("JAVA","PHP","C");    
echo is_array($lang) ? "This is Array" : "This is not Array";
$lang="PHP";
echo is_array($lang) ? "This is Array" : "This is not Array";
?>

Output

This is Array
This is not Array

PHP in_array Function

PHP in_array() function check the specified value is present in array or not. If value is present in an array, it returns true otherwise false.

Example

<?php    
$lang=array("JAVA","PHP","C");
$value = "PHP";    
echo in_array($value,$lang) ? "This value is Exist" : "This value is not Exist";
?>

Output

This value is Exist

PHP array_merge function

PHP array_merge() function combine two different array in the single array. We will merge an indexed array and an associate array. 

Example

<?php    
$arr = array ("JAVA", "PHP", "LARAVEL");
$associate_arr = array (
"Name" => "Admin",
"Post" => "Developer",
"Company" => "Developer Helps"
);
$merge_array = array_merge($arr, $associate_arr);
print_r($merge_array);
?>

Output

Array ( [0] => JAVA [1] => PHP [2] => LARAVEL [Name] => Admin [Post] => Developer [Company] => Developer Helps )

PHP array_push function

PHP array_push() function add the new element at the end of array.

Example

<?php    
$lang=array("JAVA","PHP","C");
array_push($lang,"C#");    
print_r($lang);
?>

Output

Array ( [0] => JAVA [1] => PHP [2] => C [3] => C# )

PHP array_pop Function

PHP array_pop() function remove the last element from an array. This function is opposite of the array_push() function. But we can easily understand with the following example.

Example

<?php    
$lang=array("JAVA","PHP","C");
array_pop($lang);    
print_r($lang);
?>

Output

Array ( [0] => JAVA [1] => PHP )

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