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;
}Related recommendations:
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php method to determine whether it is a valid IP address
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