php if array empty code example

Example 1: php array remove empty values

<?php
$arr = array('1', '', '2', '3', '0');
// Incorrect:
print_r(array_filter($arr));
// Correct:
print_r(array_filter($arr, 'strlen'));
//Custom
print_r(array_filter($arr, function ($val) {if ($val > 0) {return true;} else {return false;}}));

Example 2: array empty check in php

if (empty($array)) {
     // list is empty.
}

Example 3: array should not be empty php

$arr = array();

if(!empty($arr)){
  echo "not empty";
}
else 
{
  echo "empty";
}

Example 4: 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 5: php check empty variable

empty var php