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php檢查陣列中大於0的值

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Mark ChangMark Chang
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假設有一個陣列$a

$a = array(0,2,0,0,0,9,8); 

取得大於0的數值有幾個
$temp_a = array_filter($a, function($value){
return $value > 0;
});

以上紀錄~
 

#php  #array  #大於0  #取得大於0數字  
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在PHP中如何將NAN轉換為0

在PHP中如何將NAN轉換為...

首先我會得到NAN是因為我有一個計算結果為的值然後我讓他除以,結果就得到了NAN 首先甚麼是NAN?...

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