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<?php //PHPの関数 //様々な関数 $a[1] = "000"; //empty関数 /*以下の場合にTRUE ・空白の数値 ・NULLやFALSE ・変数が定義されただけの状態 ・文字列の半角の0 ・配列、数値の0 */ print $a[0]; echo empty($a).PHP_EOL;
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined array key 0 in /in/lCPqU on line 15

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