How to use strlen function in php?

The strlen function is a built-in function in PHP used to get the length of a string; it can calculate the length of a string, including all spaces and special characters; it takes the given string as a parameter and returns its length.

#strlen() function returns the length of the string.

Syntax:

strlen(string);

Parameters:

The strlen() function only accepts one parameter string, which is required. This parameter represents the string whose length needs to be returned.

Return value:

strlen() function returns the length of the given string (string), including all spaces and special characters contained in the string; if If the string is empty, 0 is returned.

Example 1:

<?php 
    $str = "hello PHP"; 
      
    // 输出字符串的长度
    echo strlen($str); 
?>

Output:

9

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