怎么判断一个值是正确的IP?有没有这样的正则? 一般都是用正则从格式上判断。到google找一下,比如:/^\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5]$/ 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 这个可能要更好一些:/^([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])$/ <?php $fd=fopen('access.log','r'); while (!feof ($fd)) { $line = fgets($fd); //echo "$line"; list($ip)=explode(' ',$line,2); if ($ip=='') continue; list($s1,$s2)=explode('] "',$line,2); list($s3,$url,$s3,$s3,$s3,$ref)=explode(' ',$s2); list($s3,$tm)=explode('[',$s1); list($s1,$s2,$s3)=explode('/',$ref); $ref=$s3; echo "IP:$ip\n"; echo "TIME:$tm\n"; //echo "URL:$url\n"; list($s1,$s2)=explode('?',$url); foreach (explode('&',$s2) as $url_v){ list($s1,$s2)=explode('=',$url_v); if ($s1=='a') $url_v_a=$s2; elseif ($s1=='u') $url_v_u=$s2; elseif ($s1=='t') $url_v_t=$s2; elseif ($s1=='c') $url_v_c=$s2; } list($s1,$s2,$s3)=explode('/',$url_v_u); $url_v_u=$s3; echo "URL_a:$url_v_a\n"; echo "URL_u:$url_v_u\n"; echo "URL_t:$url_v_t\n"; echo "URL_c:$url_v_c\n"; echo "REF:$ref\n"; } fclose($fd); ?> //判断IPfunction Is_Ip($str=''){ if(empty($str))return; return (ereg('^([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$)',$str)) ? '正确' : '错误';} 媒体播放 php 由表单传过来的值 在数据库里搜索不到 preg_replace替换a标签 No ending delimiter '^' session怎么样在两个域名间传递 PHP传值问题 varchar(max) 出现乱码 新手上路,請大家指引! config.yam为啥404不跳转呢? 如何去掉换行符? 大家做OA一般把表放在一个库还是多个库? php循环判断文件后缀 php验证码
/^([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])\.([01]?\d\d?|2[0-4]\d|25[0-5])$/
$fd=fopen('access.log','r');
while (!feof ($fd)) {
$line = fgets($fd);
//echo "$line"; list($ip)=explode(' ',$line,2);
if ($ip=='') continue;
list($s1,$s2)=explode('] "',$line,2);
list($s3,$url,$s3,$s3,$s3,$ref)=explode(' ',$s2);
list($s3,$tm)=explode('[',$s1);
list($s1,$s2,$s3)=explode('/',$ref);
$ref=$s3; echo "IP:$ip\n";
echo "TIME:$tm\n"; //echo "URL:$url\n";
list($s1,$s2)=explode('?',$url);
foreach (explode('&',$s2) as $url_v){
list($s1,$s2)=explode('=',$url_v);
if ($s1=='a') $url_v_a=$s2;
elseif ($s1=='u') $url_v_u=$s2;
elseif ($s1=='t') $url_v_t=$s2;
elseif ($s1=='c') $url_v_c=$s2;
} list($s1,$s2,$s3)=explode('/',$url_v_u);
$url_v_u=$s3; echo "URL_a:$url_v_a\n";
echo "URL_u:$url_v_u\n";
echo "URL_t:$url_v_t\n";
echo "URL_c:$url_v_c\n";
echo "REF:$ref\n";
}
fclose($fd);
?>
function Is_Ip($str='')
{
if(empty($str))return;
return (ereg('^([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$)',$str)) ? '正确' : '错误';
}