How To Test If a Variable Is an Array

Q

How To Test If a Variable Is an Array? - PHP Script Tips - Understanding PHP Arrays and Their Basic Operations

✍: FYIcenter.com

A

Testing if a variable is an array is easy. Just use the is_array() function. Here is a PHP script on how to use is_array():

<?php 
$var = array(0,0,7);
print("Test 1: ". is_array($var)."\n");
$var = array();
print("Test 2: ". is_array($var)."\n");
$var = 1800;
print("Test 3: ". is_array($var)."\n");
$var = true;
print("Test 4: ". is_array($var)."\n");
$var = null;
print("Test 5: ". is_array($var)."\n");
$var = "PHP";
print("Test 6: ". is_array($var)."\n");
print("\n");
?>

This script will print:

Test 1: 1
Test 2: 1
Test 3:
Test 4:
Test 5:
Test 6:

2007-04-20, 4734👍, 0💬