回答編集履歴

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ミスがあったため修正。

2017/01/10 17:18

投稿

kei344
kei344

スコア69366

test CHANGED
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  `==` を `===` にしてみては?
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+ ---
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+ **追記:**
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+ 失礼しました、` is same as() ` を使うようです。
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+ 【php - How to check for null in Twig? - Stack Overflow】
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+ [http://stackoverflow.com/questions/3264889/how-to-check-for-null-in-twig](http://stackoverflow.com/questions/3264889/how-to-check-for-null-in-twig)
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+ 【same as - Documentation - Twig - The flexible, fast, and secure PHP template engine】
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+ [http://twig.sensiolabs.org/doc/2.x/tests/sameas.html](http://twig.sensiolabs.org/doc/2.x/tests/sameas.html)
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+ > same as checks if a variable is the same as another variable. This is the equivalent to === in PHP:
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+ > ```PHP
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+ > {% if foo.attribute is same as(false) %}
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+ > the foo attribute really is the 'false' PHP value
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+ > {% endif %}
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+ > ```
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