How can I count the total number of built-in functions in PHP? [closed]

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How can I count the total number of built-in functions in PHP, latest version?

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You could use a core function to count the number of functions available in the core and installed extensions:

$funcs = get_defined_functions();
echo count($funcs['internal']);

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Count them here:

PHP Function List

Here is a list of all the documented PHP functions. Click on any one of them to jump to that page in the manual...

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There are 5845 listed function here at PHP website

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PHP site shows a total of 5368 functions.

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http://php.net/quickref.php

I selected all the functions listed on that page and pasted into a text editor.. i got 5011 lines which means that there are 5011 functions, if i am not wrong.