is_array: checks if a given variable is an array

$a= array("Three", "two", "Four", "five","ten"); 
$b="Hello Welcome to plus2net ";
if(is_array($a)){ // Change this variable to $b
echo " This is an array ";
}else{
echo " This is not an array ";
}

Example

<?Php
$str="Learn web programming at plus2net.com";
echo is_array($str) ? 'Yes, Array' : 'not an Array';
?>

not an Array

<?Php
$str=split(" ","Learn web programming at plus2net.com");
echo is_array($str) ? 'Yes, Array' : 'not an Array';
?>

Yes, Array

Example 1: Checking an Associative Array

<?php
$array = ['name' => 'John', 'age' => 25];
echo is_array($array) ? 'Yes, Array' : 'Not an Array';  // Output: Yes, Array
?>

Example 2: Using is_array() with Nested Arrays

<?php
$nestedArray = [1, [2, 3], 4];
echo is_array($nestedArray[1]) ? 'Nested is Array' : 'Nested is not an Array';  // Output: Nested is Array
?>

Example 3: Checking Non-Array Variables

<?php
$var = 'Hello';
echo is_array($var) ? 'Array' : 'Not an Array';  // Output: Not an Array
?>

Example 4: Using is_array() in Conditionals

<?php
$input = [10, 20, 30];
if (is_array($input)) {
    echo "The input is an array!";
} else {
    echo "The input is not an array!";
}
?>

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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