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run code in 200+ php & hhvm versions
Bugs & Features
<?php function ip_in_range($ip, $range) { $array_range = array(); if(strpos($range, ",") !== false) { // Varias faixas de ip $return = true; $array_range = explode(",", $range); foreach ($array_range as $key => $rangeIP) { echo $rangeIP; if($rangeIP){ if($ip != $range){ $return = false; break; } else if (strpos($rangeIP, '/') !== false) { // $rangeIP is in IP/NETMASK format list($rangeIP, $netmask) = explode('/', $rangeIP, 2); if (strpos($netmask, '.') !== false) { // $netmask is a 255.255.0.0 format $netmask = str_replace('*', '0', $netmask); $netmask_dec = ip2long($netmask); $return = ( (ip2long($ip) & $netmask_dec) == (ip2long($rangeIP) & $netmask_dec) ); if(!$return) { break; } } else { // $netmask is a CIDR size block // fix the rangeIP argument $x = explode('.', $rangeIP); while(count($x)<4) $x[] = '0'; list($a,$b,$c,$d) = $x; $rangeIP = sprintf("%u.%u.%u.%u", empty($a)?'0':$a, empty($b)?'0':$b,empty($c)?'0':$c,empty($d)?'0':$d); $range_dec = ip2long($rangeIP); $ip_dec = ip2long($ip); # Strategy 1 - Create the netmask with 'netmask' 1s and then fill it to 32 with 0s #$netmask_dec = bindec(str_pad('', $netmask, '1') . str_pad('', 32-$netmask, '0')); # Strategy 2 - Use math to create it $wildcard_dec = pow(2, (32-$netmask)) - 1; $netmask_dec = ~ $wildcard_dec; $return = (($ip_dec & $netmask_dec) == ($range_dec & $netmask_dec)); if(!$return) { break; } } } else { // rangeIP might be 255.255.*.* or 1.2.3.0-1.2.3.255 if (strpos($rangeIP, '*') !== false) { // a.b.*.* format // Just convert to A-B format by setting * to 0 for A and 255 for B $lower = str_replace('*', '0', $rangeIP); $upper = str_replace('*', '255', $rangeIP); $rangeIP = "$lower-$upper"; } if (strpos($rangeIP, '-') !== false) { // A-B format list($lower, $upper) = explode('-', $rangeIP, 2); $lower_dec = (float)sprintf("%u",ip2long($lower)); $upper_dec = (float)sprintf("%u",ip2long($upper)); $ip_dec = (float)sprintf("%u",ip2long($ip)); $return = ( ($ip_dec>=$lower_dec) && ($ip_dec<=$upper_dec) ); if(!$return) { break; } } $return = false; break; } } } return $return; } else { // Uma faixas de ip if(!$range){ return true; } else if($ip == $range){ return true; } else if (strpos($range, '/') !== false) { // $range is in IP/NETMASK format list($range, $netmask) = explode('/', $range, 2); if (strpos($netmask, '.') !== false) { // $netmask is a 255.255.0.0 format $netmask = str_replace('*', '0', $netmask); $netmask_dec = ip2long($netmask); return ( (ip2long($ip) & $netmask_dec) == (ip2long($range) & $netmask_dec) ); } else { // $netmask is a CIDR size block // fix the range argument $x = explode('.', $range); while(count($x)<4) $x[] = '0'; list($a,$b,$c,$d) = $x; $range = sprintf("%u.%u.%u.%u", empty($a)?'0':$a, empty($b)?'0':$b,empty($c)?'0':$c,empty($d)?'0':$d); $range_dec = ip2long($range); $ip_dec = ip2long($ip); # Strategy 1 - Create the netmask with 'netmask' 1s and then fill it to 32 with 0s #$netmask_dec = bindec(str_pad('', $netmask, '1') . str_pad('', 32-$netmask, '0')); # Strategy 2 - Use math to create it $wildcard_dec = pow(2, (32-$netmask)) - 1; $netmask_dec = ~ $wildcard_dec; return (($ip_dec & $netmask_dec) == ($range_dec & $netmask_dec)); } } else { // range might be 255.255.*.* or 1.2.3.0-1.2.3.255 if (strpos($range, '*') !==false) { // a.b.*.* format // Just convert to A-B format by setting * to 0 for A and 255 for B $lower = str_replace('*', '0', $range); $upper = str_replace('*', '255', $range); $range = "$lower-$upper"; } if (strpos($range, '-')!==false) { // A-B format list($lower, $upper) = explode('-', $range, 2); $lower_dec = (float)sprintf("%u",ip2long($lower)); $upper_dec = (float)sprintf("%u",ip2long($upper)); $ip_dec = (float)sprintf("%u",ip2long($ip)); return ( ($ip_dec>=$lower_dec) && ($ip_dec<=$upper_dec) ); } return false; } } } echo "\n". (int) ip_in_range("127.0.0.1", "127.0.0.0,127.0.0.1");
based on lKbLW
Output for 5.4.0 - 7.2.0
127.0.0.0 0