{"author_name":"takuya_1st","categories":["php"],"url":"https://takuya-1st.hatenablog.jp/entry/2023/03/10/113552","description":"Null\u5408\u4f53\u6f14\u7b97\u5b50(Null Coalescing)\u3068\u4e09\u9805\u6f14\u7b97\u5b50\u306e\u77ed\u7e2e\u5f62\uff08Short-ternary \uff09\u3092\u4f7f\u3063\u3066\u30d1\u30cb\u30af\u3063\u305f\u306e\u3067\u6574\u7406\u3002 <?php $a[0]??null #-> \u3053\u306e\u5024\u3092\u77e5\u308a\u305f\u3044\u3002 \u5024 \u6bd4\u8f03 \u7d50\u679c unset($a) $a[0] ?? null NULL $a = null $a[0] ?? null NULL $a = $a[0] ?? null NULL $a = ['x'] $a[0] ?? null 'x' $a = 'abc' $a[0] ?? null 'a' $a = '' $a[0] ?? null NULL $a = ['x'] $a[0] ?: null '\u2026","type":"rich","blog_url":"https://takuya-1st.hatenablog.jp/","width":"100%","blog_title":"\u305d\u308c\u30de\u30b0\u3067\uff01","published":"2023-03-10 11:35:52","provider_name":"Hatena Blog","version":"1.0","title":"Null\u5408\u4f53\u6f14\u7b97\u5b50(Null Coalescing)\u3068\u4e09\u9805\u6f14\u7b97\u5b50\u306e\u77ed\u7e2e\u5f62\uff08Short-ternary \uff09\u3092\u307e\u3068\u3081\u3066\u304a\u304f\u3002","image_url":null,"provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/takuya_1st/","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftakuya-1st.hatenablog.jp%2Fentry%2F2023%2F03%2F10%2F113552\" title=\"Null\u5408\u4f53\u6f14\u7b97\u5b50(Null Coalescing)\u3068\u4e09\u9805\u6f14\u7b97\u5b50\u306e\u77ed\u7e2e\u5f62\uff08Short-ternary \uff09\u3092\u307e\u3068\u3081\u3066\u304a\u304f\u3002 - \u305d\u308c\u30de\u30b0\u3067\uff01\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}