strcasecmp

Description

int strcasecmp ( string str1, string str2)

Returns < 0 if str1 is less than str2; > 0 if str1 is greater than str2, and 0 if they are equal.
例子 1. strcasecmp() example
<?php $var1 = "Hello"; $var2 = "hello"; if (strcasecmp($var1, $var2) == 0) { echo '$var1 is equal to $var2 in a case-insensitive string comparison'; } ?>

See also ereg(), strcmp(), substr(), stristr(), strncasecmp(), and strstr().