Netmask to cidr php
Feb 21, · CIDR Conversion Table; CIDR prefix length Dotted Decimal Netmask Hexidecimal Netmask Inverse Netmask Binary Number of Classfull Networks Number of Usable IPs. Check whether an IP address is within a CIDR block. Take user input and a Netmask and make it into a valid CIDR block. CIDR number into Netmask; Netmask to CIDR; Take an IP range and fit it into an exact range of CIDR blocks. This presents some difficulty in that PHP's [network functions] phpnetwork are not thorough enough. The revelation came. I'm looking to convert a cidr prefix (e.g. /28) to a netmask (e.g. ) and have not located a function for this, does one exist in php? If not, how would I go about doing this?