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PHP: ctype_upper - Manual
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ctype_xdigit" width="11" height="7"/> <ctype_space
Last updated: Thu, 31 May 2007

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ctype_upper

(PHP 4 >= 4.0.4, PHP 5)

ctype_upper — 大文字かどうか調べる

説明

bool ctype_upper ( string $text )

与えられた文字列 text のすべての文字が 大文字であるかどうかを調べます。

パラメータ

text

調べる文字列。

返り値

text のすべての文字がカレントのロケールで 大文字だった場合に TRUE 、そうでない場合に FALSE を返します。

例 416. ctype_upper() の例(デフォルトのロケールを利用)

<?php
$strings
= array('AKLWC139', 'LMNSDO', 'akwSKWsm');
foreach (
$strings as $testcase) {
    if (
ctype_upper($testcase)) {
        echo
"The string $testcase consists of all uppercase letters.\n";
    } else {
        echo
"The string $testcase does not consist of all uppercase letters.\n";
    }
}
?>

上の例の出力は以下となります。


The string AKLWC139 does not consist of all uppercase letters.
The string LMNSDO consists of all uppercase letters.
The string akwSKWsm does not consist of all uppercase letters.

    

参考

ctype_alpha()
ctype_lower()
setlocale()



add a note add a note User Contributed Notes
ctype_upper
brunobg at gmail dot com
01-Jun-2007 12:52
Take notice that this function returns false if there is any whitespace in the string.

ctype_xdigit" width="11" height="7"/> <ctype_space
Last updated: Thu, 31 May 2007
 
 
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