ord()
方法ord()函数是一个字符串函数,用于获取给定字符串第一个字符的ASCII码。
语法:
ord(string);
它接受字符串并返回数字值(ASCII码)。
例子:
Input: "Abc" Output: 65
PHP代码:
<?php $str = "Abc"; echo ("ASCII code of first character is = " . ord($str) . "\n"); $str = "Hello world"; echo ("ASCII code of first character is = " . ord($str) . "\n"); $str = "_okay"; echo ("ASCII code of first character is = " . ord($str) . "\n"); $str = "123Hello"; echo ("ASCII code of first character is = " . ord($str) . "\n"); ?>
输出结果
ASCII code of first character is = 65 ASCII code of first character is = 72 ASCII code of first character is = 95 ASCII code of first character is = 49