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

preg_match() - 进行正则表达式匹配
strcmp() - Binary safe string comparison
substr() - Return part of a string
stristr() - Case-insensitive strstr
strncasecmp() - Binary safe case-insensitive string comparison of the first n characters
strstr() - Find first occurrence of a string