試圖用php編寫一個簡單的字母程序

我試圖從一個單一的線，AZ陣列吐出每個字母的字母。試圖用php編寫一個簡單的字母程序

這是我的代碼看起來像至今：

$alphabet = array ("A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"); 

while ($alphabet) { 
    echo $alphabet; 
    $alphabet; 
}

林還挺停留在這一部分，不知道如何寫還有什麼使這項工作。有什麼建議麼？

來源

2010-12-20 WillingLearner

按照預期的環不起作用，因爲你不循環遍歷數組。你只是在評估'$ alphabet'，它的計算結果爲'true'。你有一個無限循環。 – 2010-12-20 05:06:34

$alphabet = array ("A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"); 

foreach($alphabet as $letter) { 
echo $letter; 
}

來源

2010-12-20 05:04:13 bl00dshooter

使用range和array_walk：

function e($s) { echo $s; } 
array_walk(range('A', 'Z'), 'e');

工作例如：http://codepad.org/pedjOlY9

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2010-12-20 05:02:26

感謝您的工作代碼。作爲即時學習PHP，是否有可能使用while循環而不是foreach來說相同的東西？ – WillingLearner 2010-12-20 06:00:23

@WillingLearner：當然你可以做到。每個循環都可以變成一個while循環，因爲它是最基本的循環。但是你必須編寫更多的代碼，並且它的可讀性會降低。始終遵循最容易理解的解決方案。 'foreach'很容易，因爲這個名字已經暗示對其他東西的每個元素都做了一些事情。 – 2010-12-20 21:44:42

@Felix當正確的答案不被接受時，我真的不喜歡它。 :( – 2010-12-22 02:57:06

我不知道爲什麼你需要數組... 這就是爲什麼我們的ASCII碼。你可以做的是這樣的：

for ($i = 65; $i <=90; $i++) 
{ 
    echo chr($i) . PHP_EOL; 
}

CHR（）顯示字符的ASCII地圖 - 點擊此處查看：http://www.danshort.com/ASCIImap/。如果你想做小寫 - 只需使用strtolower（）或97-122之間的數字。 PHP_EOL是一個內置常量，可以輸出行尾。你可以改變它。「
」如果你在做HTML。

我覺得範圍有點長，但它仍然有效。

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2010-12-20 05:09:42

這可能是幫助全力爲您

$alphabet = array ("A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"); 

$c = sizeof($alphabet);  
for($i= 0; $i < $c ; $i++) {  
    echo $alphabet[$i];  
}

，你可以使用count（$字母）代替的sizeof（）內置函數

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2013-12-06 17:51:46

試圖用php編寫一個簡單的字母程序

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