The sizeof function is just the alias of count function. count($sports, COUNT_RECURSIVE)) Ĭount with 1/COUNT_RECURSIVE value = 8 PHP count vs sizeof: What is the difference?Īs per PHP official documentation, there is no difference between the count and sizeof functions. "") Įcho ("Count with 1/COUNT_RECURSIVE value = ". 'indoor' => array('badminton', 'table tennis', 'volleyball')) Įcho ("Count with default value = ". To see the difference, I used both default and COUNT_RECURSIVE values and displayed the array length: array('Baseball', 'Cricket', 'Football'), This is useful for getting the size of multi-dimensional array as shown in the example below. So, count/sizeof functions used the default value which is 0.Īs mentioned earlier, the value 1, or you may also use COUNT_RECURSIVE value instead of 1, will recursively count the array. In all above examples, we omitted to use the second parameter i.e. This is followed by using sizeof in the for loop and displaying the array elements:Ĭurrent item: 125 Using the mode parameter in count function example First, I will display the length of the array by using sizeof function. Now, let us use the sizeof function for getting the length of a PHP array. In each iteration, the value is incremented by 1 and loop goes on till all elements of the array are displayed.Ĭurrent item: 55 Using sizeof function in for loop example The purpose is to provide expression value in the for loop by count function to which value should loop execute. In this example, the count function is used with the for loop for iterating through the array elements. The mixed array size = 7 The example of using count with for loop After array declaration, the count function is used to get the size of that array: In the first example, I am using a one-dimensional array of mixed elements (numbers and strings). The usage of value 1 is particularly useful for multidimensional arrays. The possible values for this parameter are 0 or 1. You may specify the array name there for which you need to get the length. The $ array_or_countable is the required parameter. The count PHP function takes two parameters as shown in the syntax below: The count function returns the size or number of elements in an array or something in an object. total number of elements) then which one to use? I will explain this, first, let me explain both these functions with examples. This will output the same as using the sizeof function: $arr_nums = array (5,7,9,11,13) Įcho "The size of array = ", sizeof($arr_nums) īoth functions return the size of an array (i.e. For example, this is how you may get the array length by count function: $arr_nums = array (5,7,9,11,13) Įcho "The size of array = ", count($arr_nums) To get the total number of elements in an array, you may use the PHP count or sizeof functions.
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