int strcasecmp
Returns < 0 if str1 is less than str2; > 0 if str1 is greater than str2, and 0 if they are equal.
Example 1. strcasecmp() example
1 2 $var1 = "Hello"; 3 $var2 = "hello"; 4 if ( !strcasecmp($var1,$var2) ) { 5 echo '$var1 is equal to $var2 in a case-insensitive string comparison'; 6 } 7
See also ereg(), strcmp(), substr(), stristr(), and strstr().