is_empty php code example

Example 1: php code to check if variable is null

if(empty($var1)){
    echo 'This line is printed, because the $var1 is empty.';
}

Example 2: php check for empty string

if (empty($var)) {
    echo '$var is either 0, empty, or not set at all';
}

Example 3: check if array is empty php

// Declare an array and initialize it 
$non_empty_array = array('apples' => '2'); 
  
// Declare an empty array 
$empty_array = array(); 
  
// Condition to check array is empty or not 
if(!empty($non_empty_array)) {
    echo "Given Array is not empty <br>"; 
}
if(empty($empty_array)) {
    echo "Given Array is empty"; 
}

Example 4: php check empty variable

empty var php