Example of string comparison function strcmp() in php

int strcmp (string $str1, string $str2)

Compare in binary mode
Comparison with this function is case-sensitive
Return value, if str1 If it is less than str2, it returns 0. If they are equal, it returns 0.

<?php    
    $str1 = "hello world";    //$str1与$str3的值相等
    $str2 = "HELLO WORLD";    
    $str3 = "hello world";    //$str1与$str3的值相等

    echo strcmp($str1,$str2);    //输出1
    echo strcmp($str2,$str1);    //输出-1
    echo strcmp($str1,$str3);    //输出0
?>

There is also a function strcasecmp(), the usage is similar to strcmp(), except that it is not case-sensitive, so I won’t go into details here

The above is the detailed content of Example of string comparison function strcmp() in php. For more information, please follow other related articles on the PHP Chinese website!