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PHP count() function with example
PHP count() function: Here, we are going to learn about the count() function with example in PHP?
Submitted by IncludeHelp, on February 14, 2019
PHP count() function
"count() function" is used to get the total number of elements of an array.
Syntax:
count(array, [count_mode])
Here,
- array is the name of an input array
- count_mode is an optional parameter and it's default value is 0, it has two values
0 – It does not count all elements of a multidimensional array
1 – It counts all elements of a multidimensional array
Examples:
Input:
$arr1 = array("101", "102", "103", "104", "105");
Output:
arr1 has 5 elements
PHP code: Using single dimensional array
<?php
$arr1 = array("101", "102", "103", "104", "105");
$arr2 = array("Amit", "Abhishek", "Prerana", "Aleesha", "Prem");
$len = count($arr1);
print ("arr1 has $len elements\n");
$len = count($arr2);
print ("arr2 has $len elements\n");
?>
Output
arr1 has 5 elements
arr2 has 5 elements
PHP code: Using multidimensional array
<?php
$students = array(
"101" => array(
"name" => "Amit",
"age" => 21,
),
"102" => array(
"name" => "Abhi",
"age" => 20,
)
);
$len = count($students);
print ("count value = $len (count_mode is not provided)\n");
$len = count($students, 0);
print ("count value = $len (count_mode is set to 0)\n");
$len = count($students, 1);
print ("count value = $len (count_mode is set to 1)\n");
?>
Output
count value = 2 (count_mode is not provided)
count value = 2 (count_mode is set to 0)
count value = 6 (count_mode is set to 1)
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