How to calculate array length in php?

#How does php calculate the length of an array?

In PHP, you can use the count() or sizeof function to get the total length or total number of elements present in the array and calculate the array length.

Method 1: count() function

First we create an array, as follows:

$array = array  ("ABC","DEF", "GHI","KLM");

Then we use the count function to print out this The number of elements in the array.

print count($array);

Output result:

Output 4 as shown in the figure, because there are four elements in the above array.

Note: The count() function counts the number of cells in the array or the number of attributes in the object.

Method 2: sizeof() function

We can also use the sizeof function to determine the number of values.

Code example:

$value= array(2,5,6,8,9);
echo "数组值的数量是".sizeof($value)."<br>";

The output result is as follows:

The above calculation output is 5.

Note: The sizeof() function calculates the number of cells in the array or the number of attributes in the object. The sizeof() function is an alias of the count() function.

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