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This article mainly introduces "the specific usage of count function in php". In daily operation, I believe that many people have doubts about the specific usage of count function in php. The editor has consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "the specific usage of count function in php". Next, please follow the editor to study!

This article operating environment: windows10 system, php 7, thinkpad T480 computer.

The count () function in PHP returns the number of elements in the array, and its syntax is as follows:

Count (array,mode)

Let's take a look at its parameters:

Array is a required parameter that specifies the array to be counted; mode is an optional parameter that specifies the pattern of the function and possible values: 0-default, does not calculate all elements in the multidimensional array; 1-recursively calculates the number of elements in the array (calculates all elements in the multidimensional array).

Let's use an example to understand the use of the count () function:

Recursively calculate the number of elements in the array:

The results are as follows:

Normal count: 3Recursive count: 8 at this point, the study of "the specific usage of the count function in php" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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