用PHP实现登陆验证码(类似条行码状)

.Bjv612 { display:none; } <?php function UPCAbarcode($code) { $lw = 2; $hi = 100; $Lencode = array('0001101','0011001','0010011','0111101','0100011', '0110001','0101111','0111011','0110111','0001011'); $Rencode = array('1110010','1100110','1101100','1000010','1011100', '1001110','1010000','1000100','1001000','1110100'); $ends = '101'; $center = '01010'; /* UPC-A Must be 11 digits, we compute the checksum. */ if ( strlen($code) != 11 ) { die( UPC-A Must be 11 digits. ); } /* Compute the EAN-13 Checksum digit */ $ncode = '0... 查看详细内容 >>