php strlen, str_word_count

문서의 길이

qiita.rb

<?php
echo strlen("Hello world!"); 
?> 

공백 포함

qiita.rb

<?php
echo str_word_count("Hello world!"); // outputs 2
?>

Syntax

qiita.rb

define(name, value, case-insensitive)

<?php
define("GREETING", "Welcome to W3Schools.com!");
echo GREETING;
?>

<?php
define("GREETING", "Welcome to W3Schools.com!", true);
echo greeting;
?>

<?php
define("GREETING", "Welcome to W3Schools.com!");

function myTest() {
    echo GREETING;
}
myTest();
?>