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donchan922/index.php

Created October 9, 2018 11:02
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index.php
<?php
$hoge = "Hello";
$foo = "World";
echo "$hoge, $foo"; // -> Hello World
$1hoge = "invalid"; // 無効：数字で始まっているため
$_hoge = "valid"; // 有効：アンダースコアで始まっているため
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