求助求助！01字符长串转换成16进制字符串的函数
如题，php里面有没有这个函数.....
------解决思路----------------------
01字符长串 就是二进制字符串了， 用 bindec 可转换成十进制数
10 进制数可用 dechex 转换成 16 进制字符串
echo dechex(bindec('011101')); //1d
不过要注意有效数位的长度
------解决思路----------------------
二进制转16进制，
可先转为10进制，然后在转为16进制。
<br />$s = '01';<br />echo dechex(bindec($s)); // 1<br />
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