PHP method to check whether the IP address is legal

小云云
Release: 2023-03-22 15:04:01
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This article mainly shares with you the method of checking whether the IP address is legal in PHP. It is mainly shared with you in the form of code. I hope it can help you.

function checkIp($ip) { $arr = explode('.',$ip); if(count($arr) != 4){ return false; }else{ for($i = 0;$i < 4;$i++){ if(($arr[$i] <'0') || ($arr[$i] > '255')){ return false; } } } return true; }
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