Strings
PHP Manual

strcasecmp

(PHP 4, PHP 5)

strcasecmp — Binary safe case-insensitive string comparison

说明

int strcasecmp ( string $str1 , string $str2 )

Binary safe case-insensitive string comparison.

参数

str1

The first string

str2

The second string

返回值

Returns < 0 if str1 is less than str2 ; > 0 if str1 is greater than str2 , and 0 if they are equal.

范例

Example#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';
}
?>

参见


Strings
PHP Manual