Backend Development
PHP Tutorial
How to use php character comparison strcmp() function_PHP tutorial
How to use php character comparison strcmp() function_PHP tutorial
The strcmp() function is used to compare two strings. If the two strings are completely equal, we will return 0, otherwise there will be various return values. This function is not case-sensitive. Friends in need can refer to it. .
Explanation of return value after comparison
If str1 and str2 are equal, return 0.
If str1 is less than str2, it returns <0 (but not necessarily -1. Many people on the Internet say it is -1, which is wrong. The specific value depends on the actual situation).
If str1 is greater than str2, it returns >0 (but not necessarily 1, the specific value depends on the actual situation).
Example
The code is as follows
| |||||||||||||||||||||||
