str_word_count
The sample above is only true on some platforms that only use a simple 'C' locale, where individual bytes are considered as complete characters that are converted to lowercase before being differentiated.
Other locales (see LC_COLLATE and LC_ALL) use the difference of collation order of characters, where characters may be groups of bytes taken from the input strings, or simply return -1, 0, or 1 as the collation order is not simply defined by comparing individual characters but by more complex rules.
Don't base your code on a specific non null value returned by strcmp() or strcasecmp(): it is not portable. Just consider the sign of the result and be sure to use the correct locale!
strcasecmp
(PHP 4, PHP 5)
strcasecmp — Сравнение строк без учета регистра, безопасное для данных в двоичной форме
Описание
int strcasecmp
( string $str1
, string $str2
)
Возвращает отрицательное число, если str1 меньше, чем str2 ; положительное число, если str1 больше, чем str2 , и 0 если строки равны.
Пример #1 Пример использования strcasecmp()
<?php
$var1 = "Hello";
$var2 = "hello";
if (strcasecmp($var1, $var2) == 0) {
echo '$var1 равно $var2 при сравнении без учета регистра';
}
?>
См. также описание функций ereg(), strcmp(), substr(), stristr(), strncasecmp() и strstr().
add a note
User Contributed Notesstrcasecmp
27-Aug-2002 03:53