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php 對數字 0 的判斷

2017-06-14 @ 21:17 in PHP, JavaScript, Sql

在匯入分數欄位時,本來的判斷方式是 if($score <> "") 本來以為它只要有值就會執行,可是再碰到 0 時 , 因為 php 對於 空值 或是 0 都是 false ,所以 0 也不處理,後來想到用 if(is_numeric($score)) 判斷就可以了,它的意思是只要是數值,或是數值字串都可以,所以 0 也可以

作者 shyong | 10 迴響 | 人氣 (729) | 引用 (0) | Permalink

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