PHP Manual
PrevNext

count

(PHP 3, PHP 4 )

count -- Count elements in a variable

Description

int count (mixed var)

Returns the number of elements in var, which is typically an array (since anything else will have one element).

Returns 1 if the variable is not an array.

Returns 0 if the variable is not set.

Warning

Count() may return 0 for a variable that isn't set, but it may also return 0 for a variable that has been initialized with an empty array. Use isset() to test if a variable is set.

Example 1. Count() example


$a[0] = 1; 
$a[1] = 3; 
$a[2] = 5; 
$result = count ($a);
//$result == 3

See also: sizeof(), isset(), and is_array().

PrevHomeNext
compactUpcurrent

HIVE: All information for read only. Please respect copyright!
Hosted by hive КГБ: Киевская городская библиотека