PHP count() Function

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# PHP count() Function

Complete PHP Array Reference

## Definition and Usage

The count() function counts the elements of an array, or the properties of an object.

## Syntax

    count(array,mode)

Parameter | Description
--- | ---
array | Required. Specifies the array or object to count.

mode

Optional. Specifies the mode of the function. Possible values:

- 0 - Default. Does not detect multidimensional arrays (arrays within arrays)
- 1 - Detects multidimensional arrays

Note: This parameter was added in PHP 4.2

## Tips and Notes

Note: This function may return 0 if a variable isn't set, but it may also return 0 if a variable contains an empty array. The isset() function can be used to test if a variable is set.

## Example

    <?php
    $people = array("Peter", "Joe", "Glenn", "Cleveland");
    $result = count($people);

    echo $result;
    ?>

The output of the code above will be:

    4

Complete PHP Array Reference

From http://www.w3schools.com (Copyright Refsnes Data)