How to determine how many digits a number has in php?

PHP, "Hypertext Preprocessor", is a general open source scripting language. PHP is a scripting language executed on the server side. It is similar to C language and is a commonly used website programming language. PHP's unique syntax mixes C, Java, Perl, and PHP's own syntax. It is conducive to learning and widely used. It is mainly suitable for the field of web development.

php method to determine how many digits a number is:

In PHP, you can first convert the number into an integer, Convert to a string and then check the length of the string to determine how many digits a number has.

Example:

<?php
  $a=120.567;
  echo strlen(floor($a));
?>

The execution result is

3

Explanation:

• floor() function rounds down is the nearest integer.

• php is a weakly typed language that can automatically convert data types according to changes in the running environment.
  

• #strlen() function returns the length of the string. Returns the length of the string if successful, or 0 if the string is empty.

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