例子
<!DOCTYPE html> <html> <body> <?php $str = "Hello World!"; echo $str . "<br>"; echo trim($str,"Hed!"); ?> </body> </html>
输出
Hello World!
llo Worl
例子
echo trim(" Hed! ");
输出
Hed!
参考:
https://www.w3school.com.cn/php/func_string_trim.asp
原文:https://www.cnblogs.com/sea-stream/p/11279794.html