PHP rtrim() 函数
code
<!DOCTYPE html> <html> <body> <?php $str = "Hello World!"; echo $str . "<br>"; echo rtrim($str,"World!"); ?> </body> </html>
输出
Hello World!
Hello
参考：
https://www.w3school.com.cn/php/func_string_rtrim.asp
code
<!DOCTYPE html> <html> <body> <?php $str = "Hello World!"; echo $str . "<br>"; echo rtrim($str,"World!"); ?> </body> </html>
输出
Hello World!
Hello
参考：
https://www.w3school.com.cn/php/func_string_rtrim.asp
