硕夏网html在线编辑器
HTML在线教程
改变方向
暗黑模式
运行代码
<HTML> <HEAD></HEAD> <FONT FACE="'Courier New',Verdana, Arial, Helvetica" SIZE=2> <!DOCTYPE html> <html> <body> <p>Mode 1 will return an array with the ASCII value as key and how many times it occurred as value (e.g. in this example, the ASCII value for the letter "l" is 108, and it occurs three times.<?php $str = "Hello World!"; print_r(count_chars($str,1)); ?>