How to get the length of a string in PHP?

@larissa 

In PHP, you can get the length of a string using the strlen() function. Here's an example:

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$string = "Hello, world!";
$length = strlen($string);
echo $length; // Output: 13

In the example above, the strlen() function takes the string $string as an argument and returns its length, which is then stored in the variable $length. Finally, the length is displayed using the echo statement.