怎么访问域名网站吗,wordpress 个性插件,wordpress 加载更多,中国足彩网竞彩推荐bin2hex() 函数bin2hex() 函数把 ASCII 字符的字符串转换为十六进制值。字符串可通过使用 pack() 函数再转换回去。语法bin2hex(string)string必需。要转换的字符串。示例一把 Shanghai 转换为十六进制值$str bin2hex(Shanghai);echo($str); // 53686…bin2hex() 函数bin2hex() 函数把 ASCII 字符的字符串转换为十六进制值。字符串可通过使用 pack() 函数再转换回去。语法bin2hex(string)string必需。要转换的字符串。示例一把 Shanghai 转换为十六进制值$str bin2hex(Shanghai);echo($str); // 5368616e67686169?示例二把一个字符串值从二进制转换为十六进制再转换回去$str Shanghai;echo bin2hex($str) . ; // 5368616e67686169echo pack(H*,bin2hex($str)) . ; // Shanghai// H的意思 Hex string, high nibble first 转换成字符串大写第一个字母?pack() 函数pack() 函数把数据装入一个二进制字符串。语法pack(format,args)format必需。规定在包装数据时所使用的格式。args可选。规定被包装的一个或多个参数。format 参数的可能值a - NUL-padded stringA - SPACE-padded stringh - Hex string, low nibble firstH - Hex string, high nibble firstc - signed charC - unsigned chars - signed short (always 16 bit, machine byte order)S - unsigned short (always 16 bit, machine byte order)n - unsigned short (always 16 bit, big endian byte order)v - unsigned short (always 16 bit, little endian byte order)i - signed integer (machine dependent size and byte order)I - unsigned integer (machine dependent size and byte order)l - signed long (always 32 bit, machine byte order)L - unsigned long (always 32 bit, machine byte order)N - unsigned long (always 32 bit, big endian byte order)V - unsigned long (always 32 bit, little endian byte order)f - float (machine dependent size and representation)d - double (machine dependent size and representation)x - NUL byteX - Back up one byte - NUL-fill to absolute position示例一echo pack(C3,80,72,80); // PHP?示例二echo pack(C*,80,72,80); // PHP?
